Academic literature on the topic 'Roche saline'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Roche saline.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Roche saline"
1
Pershina, Elisaveta V., Gaik S. Tamazyan, Alexandr S. Dolnik, Alexander G. Pinaev, Nurlan H. Sergaliev, and Evgeniy E. Andronov. "STUDYING THE STRUCTURE OF SOIL MICROBIAL COMMUNITY IN SALINE SOILS BY HIGH-THROUGHPUT PYROSEQUENCING." Ecological genetics 10, no. 2 (June 15, 2012): 32–39. http://dx.doi.org/10.17816/ecogen10232-39.
Full textAbstract:
The taxonomic structure of soil microbial community was studied in six samples taken from a salt marsh along the salinity gradient and in two samples of non-saline soils using pyrosequencing method (454 Roche). The analysis allowed to identify three main ecological groups of microorganisms depending on the degree of the soil salinity. Halophylic microorganisms were mainly represented by bacteria of three phyla Firmicutes, Proteobacteria and Bacteroidetes and included much less of archaea (the Halobacteriaceae family). Within the distance of 150–200 m from the point with the highest levels of salinity, the microbial community tends to have a considerable similarity with control samples of non-saline soils.
2
Kiyaga, Charles, Youyi Fong, Christopher Okiira, Grace Esther Kushemererwa, Ismail Kayongo, Iga Tadeo, Christine Namulindwa, et al. "HIV viral load assays when used with whole blood perform well as a diagnostic assay for infants." PLOS ONE 17, no. 6 (June 30, 2022): e0268127. http://dx.doi.org/10.1371/journal.pone.0268127.
Full textAbstract:
Objective Over the past several years, only approximately 50% of HIV-exposed infants received an early infant diagnosis test within the first two months of life. While high attrition and mortality account for some of the shortcomings in identifying HIV-infected infants early and putting them on life-saving treatment, fragmented and challenging laboratory systems are an added barrier. We sought to determine the accuracy of using HIV viral load assays for infant diagnosis of HIV. Methods We enrolled 866 Ugandan infants between March–April 2018 for this study after initial laboratory diagnosis. The median age was seven months, while 33% of infants were less than three months of age. Study testing was done using either the Roche or Abbott molecular technologies at the Central Public Health Laboratory. Dried blood spot samples were prepared according to manufacturer-recommended protocols for both the qualitative and quantitative assays. Viral load test samples for the Roche assay were processed using two different buffers: phosphate-buffered saline (PBS: free virus elution viral load protocol [FVE]) and Sample Pre-Extraction Reagent (SPEX: qualitative buffer). Dried blood spot samples were processed for both assays on the Abbott using the manufacturer’s standard infant diagnosis protocol. All infants received a qualitative test for clinical management and additional paired quantitative tests. Results 858 infants were included in the analysis, of which 50% were female. Over 75% of mothers received antiretroviral therapy, while approximately 65% of infants received infant prophylaxis. The Roche SPEX and Abbott technologies had high sensitivity (>95%) and specificity (>98%). The Roche FVE had lower sensitivity (85%) and viral load values. Conclusions To simplify and streamline laboratory practices, HIV viral load may be used to diagnose HIV infection in infants, particularly using the Roche SPEX and Abbott technologies.
3
Makadzange, A. Tariro, F. Kathryn Boyd, Benjamin Chimukangara, Collen Masimirembwa, David Katzenstein, and Chiratidzo E. Ndhlovu. "A Simple Phosphate-Buffered-Saline-Based Extraction Method Improves Specificity of HIV Viral Load Monitoring Using Dried Blood Spots." Journal of Clinical Microbiology 55, no. 7 (May 3, 2017): 2172–79. http://dx.doi.org/10.1128/jcm.00176-17.
Full textAbstract:
ABSTRACT Although Roche COBAS Ampliprep/COBAS TaqMan (CAP/CTM) systems are widely used in sub-Saharan Africa for early infant diagnosis of HIV from dried blood spots (DBS), viral load monitoring with this system is not practical due to nonspecific extraction of both cell-free and cell-associated viral nucleic acids. A simplified DBS extraction technique for cell-free virus elution using phosphate-buffered saline (PBS) may provide an alternative analyte for lower-cost quantitative HIV virus load (VL) testing to monitor antiretroviral therapy (ART). We evaluated the CAP/CTM v2.0 assay in 272 paired plasma and DBS specimens using the cell-free virus elution method and determined the level of agreement, sensitivity, and specificity at thresholds of target not detected (TND), target below the limit of quantification (BLQ) (<20 copies/ml in plasma or <400 copies/ml in DBS), and VL of <1,000 copies/ml, and VL of <5,000 copies/ml. Reported plasma VL ranged from TND, or <20, to 5,781,592 copies/ml, and DBS VL ranged from TND, or <400, to 467,600 copies/ml. At <1000 copies/ml, agreement between DBS and plasma was 96.7% (kappa coefficient, 0.93; P < 0.0001). The mean difference between DBS and plasma VL values was −1.06 log 10 copies/ml (95% confidence interval [CI], −1.17, −0.97; P < 0.0001). At a treatment failure threshold of >1,000 copies/ml, the sensitivities, specificities, positive predictive values (PPV), and negative predictive values (NPV) were 92.7%, 100%, 100%, and 94.3%, respectively. PBS elution of DBS offers a sensitive and specific method for monitoring plasma viremia among adults and children on ART at the WHO-recommended threshold of >1,000 copies/ml on the Roche CAP/CTM system.
4
Quintana, Manuel, Kapil Nanwani, Charbel Maroun, Elena Elena Muñoz, Ana María Martínez, Mar Gutierrez, Elena G Arias-Salgado, et al. "Study of the Effect of Fibrinogen, Factor XIII and Recombinant Activated Factor VII in a Model of Trauma-Induced Coagulopathy." Blood 136, Supplement 1 (November 5, 2020): 6–7. http://dx.doi.org/10.1182/blood-2020-142482.
Full textAbstract:
Introduction: Trauma-induced coagulopathy (TIC) is a multifactorial condition secondary to severe trauma. In TIC, early fibrinogen (FI) replacement and low dose of recombinant activated factor VII (rFVIIa) may positively impact outcome. Factor XIII (FXIII), on the other hand, may stimulate in vitro clot formation and clot stability. We hypothesized that combination of FI, rFVIIa and FXIII might normalize clot formation more effectively than the isolated use of each concentrate in a model of TIC. Aim: Evaluation of the procoagulant effect of isolated or combined use of FI, rFVIIa and FXIII in a model of TIC. Methods: TIC in vitro model was obtained by dilution of whole blood from seven healthy controls with isotonic saline (NaCl 0.9%) (2:3 whole blood:saline ratio). FI, rFVIIa and FXIII were spiked in combination or alone until obtaining final levels of 2 g/L, 1 μg/mL and 100 IU/dL respectively. Procoagulant effects of the different concentrates or their mixtures were evaluated by Rotational Thromboelastometry (ROTEM®, Werfen) triggered using starTEM® (calcium chloride 0,2 M) and exTEM® reagent (source of tissue factor) diluted with saline up to 1:100.000 (final dilution) for a better evaluation of both the extrinsic and intrinsic pathways of coagulation. The values of clotting time (CT: time until 2 mm of amplitude, in seconds), amplitude (parameter proportional to the clot strength) at 5 minutes (A5, in mm) and clot formation time (CFT: time from CT to 20 mm of amplitude, in seconds) were evaluated. Statistical analysis of differences was performed by One-Way ANOVA test assuming no paring of data and using the Holm-Sidak's correction for multiple comparisons with a family-wise significance and confidence level of 0.01. Statistical significance was set at p< 0.05. Results/Discussion: Data are summarized in Table I and Figure 1. CT needed the combination of two of more concentrates to reach the normal range suggesting that the administration of FI alone in TIC may not be enough to restore the patients' hemostatic potential. In regard to the clot strength evaluated by A5, the addition of FXIII or rFVIIa alone or in combination did not improve the value of A5 that was only normalized by the addition of FI. This effect of FI was increased in the presence of FXIII or rFVIIa which indicated that normal levels of FI might be required for rFVIIa or FXIII to be effective emphasising the possible benefit of the combinatory therapy. Like observed in A5, the velocity of clot formation evaluated by the CFT was normalised only by the addition of FI. However, the combination of FI plus FXIII + rFVIIa had a stronger effect on CFT compared with the combination of FI + FXIII or FI + rFVIIa, indicating that the improvement of thrombin generation due to rFVIIa plus an increment of fibrin formation and net stabilization through the contribution of higher levels of FI and FXIII respectively, might provide a beneficial synergistic procoagulant effect in TIC. Conclusion: The use of FI in TIC may contribute to increase the patient's hemostatic potential but might not be enough. Combinatory therapies based on the administration of FI, rFVIIa and FXIII might be of better benefit in this setting. Ex-vivo studies using blood of patients with stablished TIC might bring new insights on the possible advantages of this combinatory therapy to design more effective protocols to treat this frequent and life-threatening acquired condition. Disclosures Canales: Sandoz: Honoraria; iQone: Honoraria; Janssen: Speakers Bureau; Janssen: Honoraria; Roche: Speakers Bureau; Karyopharm: Honoraria; Sandoz: Speakers Bureau; Novartis: Honoraria; Takeda: Speakers Bureau; Roche: Honoraria; Sandoz: Honoraria; Janssen: Speakers Bureau; Roche: Speakers Bureau; Sandoz: Speakers Bureau; Takeda: Speakers Bureau; Janssen: Honoraria; Karyopharm: Honoraria; Novartis: Honoraria; Celgene: Honoraria; Roche: Honoraria; Gilead: Honoraria. Butta:NovoNordisk: Speakers Bureau; Takeda: Research Funding, Speakers Bureau; SOBI: Speakers Bureau; Pfizer: Speakers Bureau; ROCHE: Research Funding, Speakers Bureau; Novartis: Speakers Bureau; Grifols: Research Funding. Alvarez Román:NovoNordisk,: Research Funding, Speakers Bureau; Takeda: Research Funding, Speakers Bureau; SOBI,: Consultancy, Research Funding, Speakers Bureau; Pfizer,: Research Funding, Speakers Bureau; Roche: Speakers Bureau; Novartis: Speakers Bureau; Bayer: Consultancy; Grifols: Research Funding. Jiménez-Yuste:F. Hoffman-La Roche Ltd, Novo Nordisk, Takeda, Sobi, Pfizer: Consultancy; Grifols, Novo Nordisk, Takeda, Sobi, Pfizer: Research Funding; F. Hoffman-La Roche Ltd, Novo Nordisk, Takeda, Sobi, Pfizer, Grifols, Octapharma, CSL Behring, Bayer: Honoraria.
5
Bromberg, Jacoline, Jeanette Doorduyn, Johanna W. Baars, Gustaaf Van Imhoff, Roelien Enting, and Martin van den Bent. "Acute Painful Radiculopathy After Intrathecal Rituximab." Blood 116, no. 21 (November 19, 2010): 4920. http://dx.doi.org/10.1182/blood.v116.21.4920.4920.
Full textAbstract:
Abstract Abstract 4920 Within a prospective phase II study (HOVON 80) of patients with recurrent diffuse large B-cel lymphoma in the CNS, three of 13 patients treated with intrathecal rituximab developed an acute, transient, extremely painful lumbosacral radiculopathy. All were treated with systemic R-DHAP every 4 weeks with i.v. HD-MTX on day 15 for three cycles. In addition intrathecal Rituximab was administered twice weekly via lumbar puncture starting on day -1. According to protocol the first administration consisted of 10 mg of rituximab after premedication with acetaminophen, thereafter the dose was increased to 25 mg. No patient experienced side effects of the first intrathecal administration of rituximab. However, after the first administration of 25 mg rituximab three of 13 treated patients reported extremely painful tingling sensations in the buttocks, legs and feet immediately after administration and lasting 30–60 minutes. Concomitantly a temporarily increased bloodpressure was documented. Premedication with an antihistaminic in the third patient was ineffective. No neurologic deficits occurred and the pain resolved completely. The patients refused further treatment with intrathecal rituximab, and therapy was changed to intrathecal methotrexate, without any side effects. After these events the rituximab was diluted in saline to 5 mg/ml, the dose reduced to 10 mg per administration, and 4 mg dexamethasone was administered concomitantly in all subsequent patients. Twelve additional patients were thus treated and no further incidents of painful radiculopathy were observed. This serious, though completely transient, adverse effect of intrathecal rituximab precludes intrathecal administration of higher doses of rituximab via lumbar route. It has never been described after intraventricular administration. Disclosures: Bromberg: Roche: Research Funding. Off Label Use: rituximab administration intrathecally. Doorduyn: Roche: Research Funding. van den Bent: Roche: Consultancy, Research Funding.
6
Farnsworth, Christopher W., Nicole M. Logsdon, Jennifer E. Hayes, Rehan Rais, Maria A. Willrich, and Ann M. Gronowski. "Limitations of Free Light Chain Assays caused by the Matrix Effect." Journal of Applied Laboratory Medicine 5, no. 2 (February 6, 2020): 311–19. http://dx.doi.org/10.1093/jalm/jfz021.
Full textAbstract:
Abstract Background Serum free light chain (FLC) assays are used clinically to measure the concentration of κ and λ FLC in patients with suspected or diagnosed plasma cell proliferative disorders. Previous studies have demonstrated a loss of linearity in low concentration ranges of these assays. We hypothesized that this result could be caused by a matrix effect. Methods Recovery studies were performed for κ and λ FLC in both serum and saline using the Freelite assay (Binding Site) on a Cobas c502 system (Roche). Samples were analyzed either at the recommended dilution or undiluted. Follow-up studies were performed in varying matrices ranging from 0% to 100% saline. Retrospective patient data were analyzed to assess the impact on reported κ FLC, λ FLC, and κ/λ ratio. Results FLC in a serum matrix demonstrated underrecovery relative to samples diluted in saline for both κ and λ FLC. Of 255 patient samples with λ FLC measured undiluted (λ FLC <6.0 mg/L), an unexpected gap was observed in patient results between 2.0 and 6.0 mg/L. In addition, 23 patients measured serially with λ FLC between 2.0 and 6.0 mg/L demonstrated dramatic changes in κ/λ ratio, with no changes in κ FLC, likely because of the matrix effect. Conclusions The κ and λ Freelite assays exhibit a matrix effect when samples are tested undiluted, which has the potential to affect the κ/λ ratio. Consequently, our laboratory has stopped reporting λ FLC <6.0 mg/L.
7
Adamcová, Michaela, Vladimír Geršl, Jarmila Macháčková, Radomír Hrdina, Ivona Klimtová, Tomáš Šimůnek, Jaroslava Vávrová, and Josef Bukač. "Troponins in Experimental Studies." Acta Medica (Hradec Kralove, Czech Republic) 45, no. 1 (2002): 29–32. http://dx.doi.org/10.14712/18059694.2019.53.
Full textAbstract:
The aim of our study was to compare the diagnostic performance of cardiac troponin T (cTnT) and cardiac troponin I (cTnI) in three groups of rabbits: 1) control (saline 1 ml/kg i.v.); 2) daunorubicin (3 mg/kg i.v.); 3) daunorubicin (3 mg/kg i.v.) + dexrazoxane (60 mg/kg i.p.). The drugs were given once a week, 10 administrations. The concentration of cTnT was measured using Elecsys Troponin T STAT Immunoassay (Roche). The concentration of cTnI was measured using AxSYM Troponin I (Abbott). The linear regression model was applied to see if there is a dependence between cTnT and cTnI. The coefficient of determination (R2 = 0.79) was acceptable only in the control group. In the remaining cases (i.e. in the daunorubicin group and in the daunorubicin + dexrazoxane treated group) R2 was too small (0.53, and 0.06). We may conclude that in rabbits after repeated administration of cardiotoxic or cardioprotective drugs meaningful dependence between cTnT and cTnI was not found. The choice of the most suitable cardiomarker in laboratory animals deserves further studies.
8
Parikh, Bijal A., Meghan A. Wallace, Broc T. McCune, Carey-Ann D. Burnham, and Neil W. Anderson. "The Effects of “Dry Swab” Incubation on SARS-CoV-2 Molecular Testing." Journal of Applied Laboratory Medicine 6, no. 5 (March 29, 2021): 1281–86. http://dx.doi.org/10.1093/jalm/jfab010.
Full textAbstract:
Abstract Background Widespread testing of SARS-CoV-2 has resulted in shortages of collection devices and transport media. We evaluated the stability of flocked swabs inoculated with SARS-CoV-2-containing specimen incubated dry (i.e., without transport medium) at room temperature. Methods A pool of SARS-CoV-2 positive specimen was used to inoculate flocked swabs. Five swabs were placed immediately into universal transport media (UTM) following inoculation, and tested immediately (day 0). Fifteen of the swabs were placed into sterile 15-mL conical tubes and incubated at room temperature for 1, 2, or 7 days. Following incubation, swabs were hydrated in separate vials of UTM and tested. This protocol was repeated for viral transport media (VTM) and saline. As a comparison, a series of swabs was prepared and tested in parallel, but stored in the corresponding liquid transport media (UTM, VTM, or saline) and incubated at room temperature. Testing was performed at 1, 2, and 7 days postinoculation in duplicate. All molecular testing was performed using the Roche cobas SARS-CoV-2 assay. Results All dry swabs tested on days 1, 2, and 7 provided results that were within 2 cycle thresholds (CTs) of the average CT values for swabs hydrated in the same media and tested on day 0. There was no statistical difference in CT values between swabs incubated in liquid media versus dry swabs incubated at room temperature prior to hydration in liquid media. Conclusions The utilization of “dry swabs” may simplify specimen collection, negate the need for liquid transport media, and mitigate safety risks while preserving the accuracy of testing.
9
Adamcová, Michaela, Martin Štěrba, Ivona Klimtová, Tomáš Šimůnek, Radomír Hrdina, Vladimír Geršl, and Přemysl Poňka. "Cardiac Troponins Following Repeated Administration of an Iron Chelator – Salicylaldehyd Isonicotinoyl Hydrazone (SIH) – in Rabbits." Acta Medica (Hradec Kralove, Czech Republic) 46, no. 4 (2003): 171–74. http://dx.doi.org/10.14712/18059694.2019.28.
Full textAbstract:
Both cardiac troponin T (cTnT) and cardiac troponin I (cTnI) are considered to be reliable biomarkers with sufficient sensitivity and specificity for cardiac injury in the majority of laboratory animals. The aim of our study was to compare the diagnostic performance of cTnT and cTnI in three groups of rabbits: 1) control (saline 1 ml/kg i.v.); 2) Salicylaldehyd Isonicotinoyl Hydrazone – SIH (50 mg/kg, once weekly, i.p.; partially dissolved in 10 % Cremophor solution); 3) 10 % Cremophor solution in water (2 ml/kg i.v.). The drugs were given once a week, 10 administrations. The concentration of cTnT was measured using Elecsys Troponin T STAT Immunoassay (Roche). The concentration of cTnI was measured using AxSYM Troponin I (Abbott). The linear regression model was applied to see if there is a dependence between cTnT and cTnI. The coefficient of determination was not acceptable in all groups. The highest value of R2was found in the control group (R2= 0.424). We may conclude that in rabbits meaningful dependence between cTnT and cTnI was not found. According to our long-term experiences cTnT seems to be more suitable cardiomarker in rabbits in comparison with cTnI where the data are characterized by the large scatter.
10
Bhardwaj, Anish, Ying Wu, Patricia D. Hurn, Jeffrey R. Kirsch, and Richard J. Traystman. "Administration of Selective Endothelin Receptor Type a Antagonist Ro 61-1790 Does Not Improve Outcome in Focal Cerebral Ischemia in Cat." Journal of Cerebral Blood Flow & Metabolism 20, no. 3 (March 2000): 499–504. http://dx.doi.org/10.1097/00004647-200003000-00008.
Full textAbstract:
The authors examined the effect of selective endothelin (ET) receptor type A (ETA) antagonism on histological and functional recovery in cat at 24 hours after reversible middle cerebral artery occlusion (MCAO). A novel and specific ETA antagonist, Ro 61-1790 [5-methylpyridine-2-sulfonic acid-6-(2-hydroxyethoxy)-5-(2-methoxyphenoxy)-2-(2-1 H-tetrazol-5-yl-pyridin-4-yl)-pyrimidin-4-ylamide sodium salt (1:2)] (Roche, Basel, Switzerland), was used at doses that produced steady-state plasma concentrations and abolished ET-induced pial arteriolar vasoconstriction. In a cranial window preparation, 8 nmol/L ET constricted pial arterioles by 33 ± 18% (mean ± SD), but this response was ablated by intravenous Ro 61-1790 treatment (10-mg/kg bolus, 4-mg/kg/h infusion). In additional animal cohorts, halothane-anesthetized cats were treated with 90 minutes of MCAO and 24 hours of reperfusion. Animals received Ro 61-1790 infusion beginning at the onset of reperfusion and continuing for 6 or 24 hours (n = 41). Control cats were treated with 0.9% saline by intravenous infusion throughout reperfusion. There was no difference in injury volume or neurologic evaluation score in saline-treated cats (n = 11; caudate 24 ± 28%, cortical injury 7.5 ± 5% of ipsilateral structure; score 52 ± 8) versus the results in cats treated with Ro 61-1790 for either 24 hours (n = 6; caudate 22 ± 23%, cortex 6 ± 5%, injury volume of ipsilateral structure; score 55 ± 3) or 6 hours (n = 11; caudate 33 ± 30%, cortex 12 ± 14%, injury volume of ipsilateral structure; score 50 ± 10). Mortality was greatest in the 24-hour drug treatment group. These data suggest that blockade of ETA receptor activity is not beneficial to tissue or functional outcomes from experimental stroke in cat.
Dissertations / Theses on the topic "Roche saline"
1
Li, Zongze. "Study on creep fatigue mechanical characteristics and constitutive model of salt rock." Electronic Thesis or Diss., Lyon, INSA, 2023. http://www.theses.fr/2023ISAL0081.
Full textAbstract:
Pour répondre aux exigences de la Convention-cadre des Nations unies sur les changements climatiques, c'est-à-dire l'Accord de Paris, les pays du monde entier ont mis au point des programmes d'action axés sur le carbone et neutres en carbone. L'utilisation de sources d'énergie renouvelables est un moyen efficace de répondre à cette exigence. La roche saline ayant une bonne rhéologie, une faible porosité, une faible perméabilité et des caractéristiques d'autoréparation des dommages, le stockage de l'énergie par air comprimé dans des cavernes de sel est un moyen efficace d'améliorer l'efficacité de l'utilisation des énergies renouvelables. Compte tenu des exigences opérationnelles en matière d'équilibrage des charges dans les installations de stockage d'énergie à air comprimé, la roche environnante des réservoirs de cavernes de sel est soumise à une charge cyclique discontinue avec des taux d'injection de gaz et des pressions variables, c'est-à-dire à une charge alternée de fluage-fatigue. Grâce à une combinaison d'analyses théoriques, d'expériences en laboratoire et d'études de modèles, cette recherche a étudié les caractéristiques mécaniques de fluage-fatigue des roches salines avec différents intervalles de temps de haute contrainte, et les caractéristiques mécaniques de fluage-fatigue des roches salines sous différentes pressions de confinement. En outre, l'impact de différents niveaux de contrainte sur l'évolution des dommages dus au fluage-fatigue des roches salines a été surveillé et analysé à l'aide de dispositifs d'émission acoustique. Des essais de fluage-fatigue à long terme sur des roches salines soumises à différents taux et niveaux de charge ont été menés sur la base de la fréquence réelle d'équilibrage des charges dans les centrales de stockage d'énergie à air comprimé. Les raisons et les modèles d'interaction entre le fluage et la fatigue des roches salines dans différentes conditions ont été analysés. Sur la base de l'interaction fluage-fatigue dans les roches salines, un modèle constitutif de fluage-fatigue basé sur les variables d'état pour les roches salines a été proposé et établi, et sa validité a été vérifiée. Les résultats de la recherche fournissent des indications importantes pour assurer la stabilité des réservoirs de cavernes salinesTo meet the requirements of the United Nations Framework Convention on Climate Change, i.e., the Paris Agreement, countries around the world have developed carbon-peaking and carbon-neutral action programs. The use of renewable energy sources is an effective means of meeting this requirement. Because salt rock has good rheology, low porosity, low permeability and damage self-healing characteristics, compressed air energy storage using salt caverns is an effective way to enhance the efficiency of renewable energy use. Considering the operational requirements for load balancing in compressed air energy storage plants, the surrounding rock of salt cavern reservoirs is subjected to discontinuous cyclic loading with varying gas injection rates and pressures i.e. alternating creep-fatigue loading. Through a combination of theoretical analysis, laboratory experiments, and model studies, this research investigated the creep-fatigue mechanical characteristics of salt rocks with varying high-stress interval times, and the creep-fatigue mechanical characteristics of salt rocks under different confining pressures. Additionally, the impact of different stress levels on the creep-fatigue damage evolution of salt rocks was monitored and analyzed using acoustic emission devices. Long-term creep-fatigue tests on salt rocks under different loading rate and level were conducted based on the actual frequency of load balancing in compressed air energy storage plants. The reasons and patterns of the salt rock's interaction between creep and fatigue under different conditions were analyzed. Based on the consideration of the creep-fatigue interaction in salt rocks, a state variable-based creep-fatigue constitutive model for salt rocks was proposed and established, and its validity was verified. The research findings provide important guidance for ensuring the stability of salt cavern reservoirs
2
Boidin, Elie Homand Françoise Thomas Fabien. "Interactions roches/saumures en contexte d'abandon d'exploitations souterraines de sel." S. l. : INPL, 2007. http://www.scd.inpl-nancy.fr/theses/2007_BOIDIN_E.pdf.
Full text
3
Rayot, Véronique. "Altérations du centre de l'Australie : rôle des solutions salines dans la genèse des silcrètes et des profils blanchis /." [Fontainebleau] : Adélaïde : Ecole des mines, Centre d'informatique géologique ; CSIRO, Division of soils, 1994. http://catalogue.bnf.fr/ark:/12148/cb357014896.
Full text
4
Pires, Neto Diker Lima. "Estudo do comportamento da rocha reservatório em presença de co2 e solução salina para fins de armazenamento geológico." Pontifícia Universidade Católica do Rio Grande do Sul, 2014. http://hdl.handle.net/10923/6730.
Full textAbstract:
Made available in DSpace on 2014-07-26T02:01:19Z (GMT). No. of bitstreams: 1
000459624-Texto+Completo-0.pdf: 4081568 bytes, checksum: deb8ee15216a9002e8e304b1daaae1b7 (MD5)
Previous issue date: 2014High consumption of fossil fuels, relentless pursuit for economic development has generated excessive increase of anthropogenic emissions of greenhouse gases (GHGs), particularly of carbon dioxide (CO2). Carbon capture and geological storage is an alternative to mitigate CO2 emissions at industrial scale. This work aims to study the influence of salinity aqueous phase using CO2 in supercritical state on change of physical, chemical, and mineralogical parameters of sandstone reservoir rock, representative of the Furnas Formation in Paraná (PR) State, Brazil, in conditions of geological storage. Experiments were performed about 15 days in stainless steel batch reactors AISI 304 subjected to pressure and constant temperature (120 bar and 75 oC), similar to those found in geological formations. In parallel, PHREEQCv3. 0 code was used to simulate the geological interactions Rock-CO2-Saline solution equilibrium. Characterization of solid was performed with Microscopy in Binocular Loupe, X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) and, the aqueous phase was by ICP-OES, for analysis of cations and Ion Chomatography (IC) for analysis of anions. Those techniques converged to the same results where quartz, kaolinite and illite were found as primary mineral in abundance of mineralogical composition of the Furnas rock. Globally, the Furnas sample is not so reactive in the presence of CO2, milli-Q water and saline solution in geological storage conditions. However, partial dissolution of illite and reprecipitation of kaolinite and silica were identified at the lab scale. These results were confirmed by numerical simulations.
Consumo desenfreado de combustíveis fósseis, busca incessante pelo desenvolvimento econômico tem gerado excessivo aumento das emissões antrópicas de gases de efeito estufa (GEE), principalmente de dióxido de carbono (CO2). A captura e o armazenamento geológico de carbono é uma alternativa para mitigar as emissões de CO2 na escala industrial. Esse trabalho visa estudar a influência da salinidade da fase aquosa utilizando CO2 em estado supercrítico na alteração dos parâmetros físicos, químicos, e mineralógicos da rocha de arenito de reservatório, representativa da Formação Furnas no Estado do Paraná (PR), Brasil, em condições de armazenamento geológico. Realizou-se os experimentos durante 15 dias em reatores em batelada de aço inoxidável AISI 304 submetidos à pressão e temperatura constantes (120 bar e 75 oC), idênticas às encontradas nas formações geológicas. Em paralelo, o código PHREEQC-v3. 0 foi utilizado para simular as interações geoquímicas Rocha-CO2-Solução salina ao equilíbrio. Uma caracterização do sólido foi realizada por Microscopia em Lupa Binocular, Difração de Raios-X (DRX), Microscopia Eletrônica de Varredura (MEV) com espectroscopia de energia dispersiva (EDS) e, da fase aquosa foi por ICP-OES, para análise de cátions, e cromatografia iônica, para análise de ânions. Estas técnicas convergiram para os mesmos resultados, onde quartzo, caulinita e ilita foram encontrados como minerais primários em abundância na composição mineralógica da rocha Furnas. Em geral, a rocha Furnas mostrou-se pouco reativa em presença de CO2, água Milli- Q ou solução salina para fins de armazenamento geológico. Porém, se identificou a dissolução parcial de ilita e a (re)precipitação de sílica e caulinita, em escala laboratorial. Esses resultados foram confirmados pela modelagem numérica.
5
Mercerat, Enrique Diego. "Sismicité induite et modélisation numérique de l'endommagement dans un contexte salin." Thesis, Vandoeuvre-les-Nancy, INPL, 2007. http://www.theses.fr/2007INPL053N/document.
Full textAbstract:
Dans le cadre d’un programme de recherche mené par le GISOS (Groupement d’Intérêt Scientifique de Recherche sur l’Impact et la Sécurité des Ouvrages Souterrains), le site pilote de Cerville-Buissoncourt (Lorraine, France) a fait l’objet d’une importante instrumentation géophysique et géotechnique pour assurer la surveillance d’une cavité saline à 200 m de profondeur, depuis son état stationnaire jusqu’à l’effondrement des terrains du recouvrement. Les objectifs principaux de cette thèse consistaient à : 1) valider la technique de surveillance basée sur l’écoute microsismique dans un contexte salin, et 2) modéliser numériquement le comportement mécanique complexe du recouvrement, particulièrement l’initiation des microfissures et leur propagation. L’analyse de la sismicité induite enregistrée a permis de caractériser l’état initial de la cavité en terme d’activité microsismique. Deux types d’événements ont été identifiés : les événements isolés correspondant aux ruptures localisées, et les événements en rafale, d’une dizaine de secondes de durée. D’après les résultats de localisation d’hypocentres, la totalité de la sismicité enregistrée est générée au niveau de la cavité dans le gisement de sel, ou bien dans les faciès marneux qui composent le toit immédiat de la cavité actuelle. Les déclenchements en rafale seraient liés à des phénomènes de délitement puis de décrochement de blocs de marne, suivis des chutes de blocs dans la cavité remplie de saumure. Le travail de modélisation numérique a été focalisé sur la possibilité de rendre compte de l’endommagement dans les couches fragiles du recouvrement. Nous avons mis en oeuvre un modèle géomécanique hybride à l’échelle du site pilote qui intègre les différentes formations géologiques présentes dans le recouvrement, ainsi que l’initiation, la propagation et la coalescence des microfissures dans le banc raide, à l’aide des logiciels FLAC et PFC2D. La calibration du modèle discret PFC2D pour reproduire le comportement en traction du banc raide a été vérifiée numériquement à l’échelle du site pilote. Cette vérification a été basée sur la comparaison, en termes de la réponse élastique et d’apparition des ruptures dans le banc raide, entre l’approche hybride FLACPFC 2D et la modélisation purement continue avec FLAC. Le modèle hybride ainsi défini pourra être utilisé dans le cadre d’une retro-analyse une fois que les mesures in-situ, notamment les enregistrements microsismiques et les données de déformation, seront disponibles à Cerville-BuissoncourtWithin the framework of a research program carried out by the GISOS (Scientific Grouping of Research Interest on the Impact and Safety of Underground Works), the pilot site of Cerville-Buissoncourt (Lorraine, France) was the subject of a large geophysical and geotechnical instrumentation to ensure the monitoring of a salt cavity at 200 m depth, from its stationary state to the final overburden collapse. The main objectives of this work consisted on : 1) the validation of the microseismic monitoring technique in a salt mine environment, and 2) the numerical modelling of the mechanical behavior of the overburden, particularly the initiation and the propagation of microcracks. The analysis of the recorded induced seismicity allowed to characterize the initial state of the cavity in terms of microseismic activity. Two types of events were identified : isolated events corresponding to localized ruptures, and swarms of events, of tens of seconds of duration. According to hypocenter location results, the totality of the recorded seismicity is generated either in the cavity surroundings within the salt layer, or in the marly facies of the current cavity roof. Swarms would be related to delamination of clayley marls in the immediate roof, followed by rock debris falling in the brine filled cavity. The numerical modelling was focused on the possibility of accounting for the damage in the fragile layers of the overburden. We implemented a hybrid geomechanical model of the pilot site which integrates the various geological formations present in the overburden, as well as the initiation, the propagation and the coalescence of microcracks in the stiff layer, using FLAC and PFC2D softwares. The calibration of the discrete PFC2D model to reproduce the tensile behaviour of the stiff layer was numerically checked on the site scale. The validation was based on the comparison, in terms of the elastic response and the damage onset in the stiff layer, between the hybrid approach FLAC-PFC2D and the purely continuous modelling using FLAC. The hybrid model thus defined would be used for back-analysis studies once in-situ measurements, in particular microseismic recordings and deformation data, will be available at Cerville-Buissoncourt
6
Pires, Neto Diker Lima. "Estudo do comportamento da rocha reservat?rio em presen?a de co2 e solu??o salina para fins de armazenamento geol?gico." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2014. http://tede2.pucrs.br/tede2/handle/tede/3261.
Full textAbstract:
Made available in DSpace on 2015-04-14T13:59:08Z (GMT). No. of bitstreams: 1
459624.pdf: 4081568 bytes, checksum: deb8ee15216a9002e8e304b1daaae1b7 (MD5)
Previous issue date: 2014-03-31High consumption of fossil fuels, relentless pursuit for economic development has generated excessive increase of anthropogenic emissions of greenhouse gases (GHGs), particularly of carbon dioxide (CO2). Carbon capture and geological storage is an alternative to mitigate CO2 emissions at industrial scale. This work aims to study the influence of salinity aqueous phase using CO2 in supercritical state on change of physical, chemical, and mineralogical parameters of sandstone reservoir rock, representative of the Furnas Formation in Paran? (PR) State, Brazil, in conditions of geological storage. Experiments were performed about 15 days in stainless steel batch reactors AISI 304 subjected to pressure and constant temperature (120 bar and 75 oC), similar to those found in geological formations. In parallel, PHREEQCv3.0 code was used to simulate the geological interactions Rock-CO2-Saline solution equilibrium. Characterization of solid was performed with Microscopy in Binocular Loupe, X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) and, the aqueous phase was by ICP-OES, for analysis of cations and Ion Chomatography (IC) for analysis of anions. Those techniques converged to the same results where quartz, kaolinite and illite were found as primary mineral in abundance of mineralogical composition of the Furnas rock. Globally, the Furnas sample is not so reactive in the presence of CO2, milli-Q water and saline solution in geological storage conditions. However, partial dissolution of illite and reprecipitation of kaolinite and silica were identified at the lab scale. These results were confirmed by numerical simulations.
Consumo desenfreado de combust?veis f?sseis, busca incessante pelo desenvolvimento econ?mico tem gerado excessivo aumento das emiss?es antr?picas de gases de efeito estufa (GEE), principalmente de di?xido de carbono (CO2). A captura e o armazenamento geol?gico de carbono ? uma alternativa para mitigar as emiss?es de CO2 na escala industrial. Esse trabalho visa estudar a influ?ncia da salinidade da fase aquosa utilizando CO2 em estado supercr?tico na altera??o dos par?metros f?sicos, qu?micos, e mineral?gicos da rocha de arenito de reservat?rio, representativa da Forma??o Furnas no Estado do Paran? (PR), Brasil, em condi??es de armazenamento geol?gico. Realizou-se os experimentos durante 15 dias em reatores em batelada de a?o inoxid?vel AISI 304 submetidos ? press?o e temperatura constantes (120 bar e 75 oC), id?nticas ?s encontradas nas forma??es geol?gicas. Em paralelo, o c?digo PHREEQC-v3.0 foi utilizado para simular as intera??es geoqu?micas Rocha-CO2-Solu??o salina ao equil?brio. Uma caracteriza??o do s?lido foi realizada por Microscopia em Lupa Binocular, Difra??o de Raios-X (DRX), Microscopia Eletr?nica de Varredura (MEV) com espectroscopia de energia dispersiva (EDS) e, da fase aquosa foi por ICP-OES, para an?lise de c?tions, e cromatografia i?nica, para an?lise de ?nions. Estas t?cnicas convergiram para os mesmos resultados, onde quartzo, caulinita e ilita foram encontrados como minerais prim?rios em abund?ncia na composi??o mineral?gica da rocha Furnas. Em geral, a rocha Furnas mostrou-se pouco reativa em presen?a de CO2, ?gua Milli- Q ou solu??o salina para fins de armazenamento geol?gico. Por?m, se identificou a dissolu??o parcial de ilita e a (re)precipita??o de s?lica e caulinita, em escala laboratorial. Esses resultados foram confirmados pela modelagem num?rica.
7
Boidin, Elie. "Interactions roches/saumures en contexte d'abandon d'exploitations souterraines de sel." Thesis, Vandoeuvre-les-Nancy, INPL, 2007. http://www.theses.fr/2007INPL010N/document.
Full textAbstract:
La problématique de cette thèse est l’identification des phénomènes physico-chimiques se produisant entre les roches encaissantes du gisement de sel gemme de Lorraine et des saumures, puis l’étude de leurs effets sur le comportement mécanique. Une démarche multi-échelle a été entreprise : du minéral à l’échelle d’une exploitation en passant par celle des essais mécaniques. La confrontation de la géologie locale avec la géométrie des cavités de dissolution de sel (logiciel GOCAD) au travers de ces roches encaissantes rend compte d’un délitage relativement rapide lorsque les argilites sont au contact d’une saumure de cavité. A l’inverse, l’anhydrite et la dolomie peuvent constituer le toit de cavité pendant plusieurs années, avant de se rompre. Suite à une caractérisation minéralogique, et microtexturale des roches encaissantes (Marnes irisées inférieures et moyennes), une expérimentation de type batch a été mise en œuvre afin de comprendre ces différences: les faciès lithologiques qualifiés de majeurs ont été immergés dans des saumures pendant plus d’un an. Des analyses chimiques et microscopiques ont permis de suivre les modifications minéralogiques et microtexturales. Au contact de saumures saturées en chlorure de sodium, les faciès argileux se délitent en raison de l’hydratation en gypse du minéral anhydrite. Au niveau de l’anhydrite massive, cette hydratation n’affecte qu’une frange superficielle des échantillons, en raison d’une porosité connectée quasi-nulle. En présence d’une saumure de cavité, l’hydratation est promue par la présence de potassium et de strontium en solution. Ces résultats permettent d’expliquer qualitativement la dilatation voire la rupture des éprouvettes d’argilite lors d’essais de fluage en saumures. Le comportement en flexion de l’anhydrite massive ne semble pas être affecté par la présence de saumure, en raison d’une porosité trop faible pour permettre l’accès de la saumure au site réactionnel que sont les cristaux d’anhydriteThe aim of this study is the understanding of the physico-chemical interactions between saturated brine and the rocks (Marnes Irisées inférieures) enclosing the underground salt workings in Lorraine (eastern France), and also the study of their effect on the mechanical behaviour. A multi-scale study was undertaken, from the mineral scale to the one of a salt working. Whereas anhydrite-rich argillites flake quickly with the presence of saturated brine at the border of solutions cavities, the dolomudstone and massive anhydrite don’t and can constitute the top of cavities for several years. In order to explain this difference, these three lithologies were analysed in terms of mineralogy, micro-texture and porous media. Then, samples of argillites and massive anhydrite were immersed in saturated brines for more than one year. Chemical and microscopic analysis testified the hydration of anhydrite crystals into gypsum. This transformation occurs in a superficial way on massive anhydrite; to the contrary, it is located inside the anhydrite-rich argilites. As this transformation induces a volume increasing of 63%, the anhydrite crystals swell. In saturated brine, the water activity is low enough to prevent the swelling of clays such as smectites. Thus, anhydrite swelling might be the responsible of the argillites splitting in a saturated brine environment. The superficial anhydrite hydration on massive anhydrite can be explained by the low values of connected porosity (less than 1%) for this lithology. This results can explain, in a qualitative way, the dilatant behaviour of argilites samples during creep tests with brine. The bending behaviour of massive anhydrite don’t seem to be affected by the presence of brine for one year or less, probably because of the too low porosity of this lithology
8
Colas, Estel. "Impact de l'humidité et des solutions salines sur le comportement dimensionnel de grès du Buntsandstein : contribution à la sélection de faciès de restauration." Thesis, Reims, 2011. http://www.theses.fr/2011REIMS031/document.
Full textAbstract:
L'objectif de ce travail est d'appréhender l'altérabilité des grès en s'appuyant sur la définition de paramètres physiques pertinents. Il est appliqué à l'évaluation de grès du Buntsandstein afin de contribuer à la sélection de faciès de restauration des monuments historiques du nord-est de la France et, plus particulièrement, de la cathédrale Notre Dame de Strasbourg. Pour y répondre, l'étude expérimentale comparative s'est fondée sur cinq faciès de carrière dont les sensibilités à l'altération doivent être appréciées et sur deux faciès mis en œuvre qui ont montré des cinétiques et des états d'altération divergents. La considération de ces faciès exposés a constitué un garde-fou qui permet d'apprécier la différence de tenue entre ces grès. Les caractéristiques des structures de pores et des matrices argilo-ferrugineuses impliquées dans la réponse dilatométrique des grès ont souligné la forte incidence de la quantité, de la nature et des propriétés de surface des argiles sur les comportements hydrodynamique et mécanique, à l'origine de leur fatigue. L'application de tests en laboratoire de résistance aux sels a mis en évidence l'implication des interactions minéraux-solution saline dans la réponse des grès à une contamination en NaCl et Na2SO4. La discrimination des faciès selon leur sensibilité à l'altération par les sels a pu être établie et un indice de sensibilité aux sels a été formulé. Les propriétés des matrices argileuses et la qualité des contacts de grains jouent un rôle déterminant dans la réponse des grès à l'altération par les selsThe aim of this study was to highlight relevant stone parameters on which the durability of Triassic siliceous sandstones could be predicted in order to contribute to the selection of the potential restoration stones in the built heritage and especially on the cathedral of Strasbourg. An experimental comparative study was made on 5 quarry sandstones to discriminate and 2 exposed sandstones from the monument. The two exposed pieces showed opposite weathering behaviors and states of cohesion that could allow a better definition of the parameters involved in the salt weathering of sandstones. The pore structures and the clay coating properties of sandstones underlined the major role of the clay minerals (quantity, nature and specific surface area) in the dilation behavior under humidity variations as well as in hydrodynamical and mechanical behaviors of sandstones. Three types of salt weathering test were carried out on sandstones. The clay-salt interaction was emphasized by the modifications of the dilation behaviors after salt contamination upon salt nature, NaCl or Na2SO4. A classification of stone susceptibility to salt damages had been proposed as well as an index of salt susceptibility of sandstone had been formulated. The mineralogical and mechanical contributions could justify stone susceptibility to salt damage
9
Hebert, Vanessa. "Analyses multi-échelles de la structure d'un réservoir carbonaté littoral : exemple de la plateforme de Llucmajor (Majorque, Espagne)." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20234/document.
Full textAbstract:
L'étude des milieux hétérogènes carbonatés et karstifiés trouve aujourd'hui de nombreuses applications dans les problématiques environnementales, comme la description fine de la structure d'un réservoir côtier, support d'un aquifère affecté par une intrusion d'eau salée. Au sud de l'ile de Majorque (Baléares, Espagne), la plate-forme carbonatée de Llucmajor représente un site privilégié pour ce type d'étude.La caractérisation des hétérogénéités ne peut être réalisée sans une description préalable des propriétés des réservoirs carbonatés et des facteurs modifiant la structure du réservoir. Un des paramètres clés définissant la structure hétérogène est la porosité. Au regard de la large gamme de tailles d'hétérogénéités allant du micromètre à la centaine de mètre, l'utilisation de méthodes multi-échelles est nécessaire.Ce travail de thèse a porté sur la détermination multi-échelles de la porosité, allant de la microporosité à la porosité karstique, et l'établissement de relations entre les changements d'échelles d'observation de ces propriétés. Dans un premier temps, l'application de la microtomographie à rayons X extrait la microporosité et la connectivité des réseaux microporeux. Puis, la tomographie a été utilisée avec une résolution plus faible afin d'étudier le réseau micro- et macroporeux à l'échelle de la carotte. A l'échelle du puits, les images de paroi de puits permettent de déterminer la porosité allant des macropores centimétriques aux karsts. Enfin, la géophysique de surface a permis d'observer l'extension des karsts et hétérogénéités dans une grande partie du site.Ainsi, la structure poreuse du site étudié a été intégrée dans la géologie régionale de la plate-forme. L'observatoire installé sur le site pour surveiller la propagation de l'eau salée dans l'aquifère peut être replacé dans son contexte géologique et pétrophysique, afin d'affiner l'interprétation de ses mesures de variations de salinitéThe study of heterogeneous and karstified carbonates is important in many environmental issues, like the detailed description of a coastal reservoir structure containing an aquifer affected by saline intrusion. At the south of the island of Mallorca (Spain), the Llucmajor carbonate platform represents a typical site for such researches. Characterization of heterogeneities requires a better knowledge of the carbonate reservoir properties and the various factors affecting the structure. One of the key parameters defining the heterogeneous structure is the porosity. According to the wide range of heterogeneity sizes from micrometer to hundreds of meters, the use of multiscale methods is required.This thesis focused on the determination of multiscale porosities from the microporosity to karstic porosity, and of relationships between observation scale changes of these properties. Firstly, the application of X-ray microtomography allows to extract the microporosity and the microporous network connectivity. Then, X-ray tomography was used with a lower resolution to study the micro- and macro-porous network at the core scale. At the borehole scale, the borehole wall images are used to determinate macrostructures from centimeter pores to karsts. Finally, surface geophysics allows to observe the extension of karst and heterogeneities at the site scale.Finally, the porous structure of the study site is integrated into the regional geology of the platform. A hydrogeophysical observatory was installed on site to monitor the spreading of salt water in the aquifer. The interpretation of its salinity measurements can take into account the geological and petrophysical context
10
Hassani, Moulay Idriss. "Hydrogéologie d'un bassin endoréique semi-aride : le bassin versant de la grande Sebkha d'Oran (Algérie)." Phd thesis, Grenoble 1, 1987. http://tel.archives-ouvertes.fr/tel-00760562.
Full textAbstract:
Le bassin versant de la Sebkha d'Oran , allongé du Nord-Est au Sud-Ouest ,forme un bassin sédimentaire sublittoral ; bordé au Nord par les massifs littoraux (Murdjadjo) et au Sud par les monts Tessalas. L'étude hydro climatologique confirme un climat de type seml aride. Les données de la pluviométrie, de l'évapotranspiration et du ruissellement, ont permis l'établissement d'un bilan hydrologique. La structure géologique détermine deux grands ensembles: - un substratum ante-synchro-nappe affleurant dans Ies zones hautes. - un remplissage néogène dans le bassin. Les calcaires messiniens constituent le meilleur réservoir hydrogéologique de la région. La corrélation des forages nous a permis de confirmer l'absence de leur continuité sous la sebkha. Dans la plaine de Mleta ceci a été confirmé par des sondages électriques. L'étude piézométrique de la nappe alluviale révèle une importante sédimentation par les calcaires messiniens au Nord de la sebkha et une alimentation par les cônes de déjection des oueds dans la Mleta.L'écoulement de la nappe se fait globalement en direction de la sebkha. L' interprétation des résultats des essais de pompage a permis de déterminer partiellement les caractéristiques hydrodynamiques de certains aquifères. L'étude physico-chimique des eaux de la nappe entre Oran et Boutlelis permet une bonne distinction entre les eaux peu minéralisées, à faciès bicarbonaté calcique ou magnesien des calcaires et les eaux très minéralisées, à faciès chloruré soidique des alluvions . L'étude des sources indique la forte in fluence des évaporites dans les Tessalas. Les analyses de teneur en Tritium des eaux de certaines sources nous ont renseigné sur leur mode de circulation. Les mécanismes contrôlant la salinisation du bassin versant ont été détaillés; il en ressort que la sebkha n'est pas à l'origine de cette salinisation mais en serait plutôt la conséquence.
Book chapters on the topic "Roche saline"
1
Campbell, Julie D. "Marie-Catherine de Pierrevive and the Dames des Roches." In Women, Entertainment, and Precursors of the French Salon, 1532–1615. Nieuwe Prinsengracht 89 1018 VR Amsterdam Nederland: Amsterdam University Press, 2023. http://dx.doi.org/10.5117/9789463728652_ch02.
Full textAbstract:
Sixteenth-century Lyon’s cultural encounters between Italy and France served as incubators for entertainment practices in its prosperous société mondaine. Women’s participation in literary society illustrates how they engaged in intellectual play with their male contemporaries. Moreover, gatherings in printers’ abodes as well as the Académie de Fourvière and the home of Marie-Catherine de Pierrevive serve as examples for the ways that early twentieth-century scholarship demarcated Lyonnais sodalities as either brilliant humanist circles or intellectually suspect groups of fans of vernacular Italian literature and games, a seldom completely supportable dichotomy. In Poitiers the bureau d’esprit of the Dames des Roches provides a case in point, as it was a humanist salon but one that clearly engaged in vernacular poetry and games.
2
"Marie-Catherine de Pierrevive and the Dames des Roches." In Women, Entertainment, and Precursors of the French Salon, 1532-1615, 77–110. Amsterdam University Press, 2023. http://dx.doi.org/10.2307/jj.5973224.8.
Full text
3
"2. Marie-Catherine de Pierrevive and the Dames des Roches." In Women, Entertainment, and Precursors of the French Salon, 1532-1615, 77–110. Amsterdam University Press, 2023. http://dx.doi.org/10.1515/9789048554027-005.
Full text
4
Lopes, Luana Caroline Kawamura, Andréa Luciana dos Santos, Alessandro Borges Amorim, Evelise Andreatta, Andreoli Correia Alves, Ivan Graça Araújo, and Vânia Maria Arantes. "COR DA GEMA E QUALIDADE DE OVOS DE CODORNAS JAPONESAS (COTURNIX COTURNIX JAPONICA) SUPLEMENTADAS COM URUCUM E AÇAFRÃO." In Zootecnia: tópicos atuais em pesquisa - Volume 3, 120–35. Editora Científica Digital, 2023. http://dx.doi.org/10.37885/230813946.
Full textAbstract:
Objetivo: Este trabalho teve como objetivo avaliar as características qualidade e coloração da gema de ovos de codornas japonesas alimentadas com dois pigmentantes naturais (urucum e açafrão) utilizando diferentes níveis de inclusão na dieta (testemunha; 1%; 1,5%; 2%; 3%). Métodos: A pesquisa foi realizada no galpão de cortunicultura da UFR, utilizando 120 codornas distribuídas aleatoriamente em 40 gaiolas contendo 3 aves em cada. A avaliação experimental total foi realizada em quatro períodos de sete dias. Avaliou-se a Unidade Haugh (UH) e o Índice Gema (IG) dos ovos. O cálculo de UH foi: UH = l00Log (h +7,57 - 1,7W0,37) onde: h = altura do albúmen (mm) e W = peso do ovo (g), sendo que quanto maior o valor da UH, melhor a qualidade dos ovos. O IG foi calculado através da relação entre a altura da gema e seu diâmetro. Os parâmetros dos constituintes do ovo foram: porcentagem de casca (PC), porcentagem de albúmen (PA) e porcentagem de gema (PG). A PC, PA e PG foram calculadas através da seguinte fórmula: constituinte (casca, albúmen ou gema) (%) = (peso do constituinte avaliado /peso do ovo) x 100. A densidade aparente do ovo (DAE) foi avaliada de acordo com a metodologia das soluções salinas. A coloração da gema (CG) foi verificada pelo leque colorimétrico da ROCHE. Os resultados foram analisados pelo programa R e as médias comparadas pelo teste F (P<0,05). Resultados: Não houve influência na utilização dos pigmentantes e níveis de inclusão para as características: UH, IG, PC, PA, PG e DAE (P>0,05). A cor da gema foi influenciada pela utilização do pigmentante (P<0,05) e pelo nível de inclusão (P<0,05) sendo que o urucum se mostrou mais eficiente à medida em que se aumentou o teor de pigmentante na dieta. Conclusão: O urucum é um pigmentante eficiente para a gema de ovos de codornas.
Conference papers on the topic "Roche saline"
1
dos Santos, Christian Pereira Lopes, Antonio Expedito Gomes de Azevedo, Luiz Rogério Bastos Leal, and Maria do Rosário Zucchi. "Composição isotópica do carbono combinado com os íons (Ca+2, Mg+2, SO4=) para avaliar a interação água-rocha no sistema aqüífero Salitre-Ba." In 10th International Congress of the Brazilian Geophysical Society & EXPOGEF 2007, Rio de Janeiro, Brazil, 19-23 November 2007. Society of Exploration Geophysicists and Brazilian Geophysical Society, 2007. http://dx.doi.org/10.1190/sbgf2007-060.
Full text
2
Pereira Lopes dos Santos, Christian, Antonio Expedito Gomes de Azevedo, Luiz Rogério Bastos Leal, and Maria do Rosário Zucchi. "Composição isotópica do carbono combinado com os íons (Ca+2, Mg+2, SO4 =) para avaliar a interação água-rocha no sistema aqüífero Salitre-Ba." In 10th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2007. http://dx.doi.org/10.3997/2214-4609-pdb.172.sbgf0050_07.
Full text
3
Souza, Paulo César de. "PODER LEGISLATIVO MUNICIPAL DE MINAS GERAIS E SÃO PAULO: quadro comparativo entre regimentos de Francisco Morato, Franco da Rocha, Ibirité, Mantena, Taiobeiras e Salinas." In Fórum Nacional de Publicações-Ano II. Home Editora, 2023. http://dx.doi.org/10.46898/home.19ba626f-4b70-4cb5-a21c-05fa36fd0697.
Full text
4
"ANAIS DO 2º ENCONTRO NORTE-NORDESTE MULTIPROFISSIONAL EM URGÊNCIA E EMERGÊNCIA." In ANAIS DO 2º ENCONTRO NORTE-NORDESTE MULTIPROFISSIONAL EM URGÊNCIA E EMERGÊNCIA. Revista Eletrônica Acervo Saúde, 2019. http://dx.doi.org/10.25248/anais.e5806.2019.
Full textAbstract:
O II Encontro Norte-Nordeste Multiprofissional em Urgência e Emergência, aconteceu entre os dias 15, 16 e 17 de agosto de 2019. Teve como objetivo promover pesquisa como forma de desenvolvimento do conhecimento na área de Urgência e Emergência e estimular à formação de pesquisadores e a divulgação das atividades de pesquisa realizadas por profissionais, estudantes de graduação e pós-graduação de diversas áreas da saúde que estejam realizando atividades de pesquisa, iniciação científica, estágios, projetos de extensão, trabalho voluntário e residências em hospitais, bem como de professores pesquisadores, visando integração cultural e científica; incentivar e estimular o desenvolvimento profissional e cientifico em todos os campos da ciência e tecnologia na comunidade acadêmica; o engajamento de pesquisa e processo de investigação cientifica. O evento, realizado pela Empresa SALVE VIDAS, ocorreu de forma presencial, com sede no Auditório do Conselho Regional de Enfermagem – COREN, em Teresina – PI. GILMAR ALVES DE SOUSA, Presidente do II Encontro Norte-Nordeste Multiprofissional em Urgência e Emergência. COMISSÃO ORGANIZADORA Presidente do Evento: Gilmar Alves de Sousa Vice-presidente: Givaldo Alves de Sousa Coordenação: Suzane Sales Oliveira Josyane Lima Mendes Comissão Científica: Suzane Sales Oliveira Alan Jefferson Alves Reis Lílian Maria Almeida Costa Elayne Kelly Sepedro Sousa Ana Carolina Dourado Oliveira Comissão Avaliadora: Aline Costa de Oliveira Ana Dulce Amorim Santos Soares Antonia Mauryane Lopes Antônio Carlos Leal Cortez Armano Lennon Gomes de Sousa David Bernar Oliveira Guimarães Ingrid Moura de Abreu Jadilson Rodrigues Mendes Staff: Álvaro Sepúlveda Carvalho Rocha Breno Alves da Silva Ellen Cristina da Costa Leite Sousa Erika Maria Lopes Brito Francisco Wellyson Ribeiro de Andrade Geisa Maria de Sousa Harryson Kleyn Sousa Lima Izadora Caroline Silva Lara Rayssa Pires Barbosa Lauryanna Queiroz da Silva Linay Landia Cardoso da Paz Mariana Gabrielle Carvalho Gomes Priscila Pontes Pastana de Oliveira Rafael Bezerra dos Santos Rafael de Assis de Brito Rafaela Miranda Martins Renan Machado de Carvalho Sabrina Sousa Barros Sabrina Teixeira Melo do Nascimento Thaynara Pereira Leão Willden John Lopes de Aguiar