Relevant bibliographies by topics / GFR

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'GFR'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'GFR.'

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 "GFR"

1

Stainsby, Richard, Karen Peers, Colin Mitchell, Christian Poette, Konstantin Mikityuk, and Joe Somers. "Gas Cooled Fast Reactor Research and Development in the European Union." Science and Technology of Nuclear Installations 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/238624.

Full text
Abstract:
Gas-cooled fast reactor (GFR) research is directed towards fulfilling the ambitious goals of Generation IV (Gen IV), that is, to develop a safe, sustainable, reliable, proliferation-resistant and economic nuclear energy system. The research is directed towards developing the GFR as an economic electricity generator, with good safety and sustainability characteristics. Fast reactors maximise the usefulness of uranium resources by breeding plutonium and can contribute to minimising both the quantity and radiotoxicity nuclear waste by actinide transmutation in a closed fuel cycle. Transmutation is particularly effective in the GFR core owing to its inherently hard neutron spectrum. Further, GFR is suitable for hydrogen production and process heat applications through its high core outlet temperature. As such GFR can inherit the non-electricity applications that will be developed for thermal high temperature reactors in a sustainable manner. The Euratom organisation provides a route by which researchers in all European states, and other non-European affiliates, can contribute to the Gen IV GFR system. This paper summarises the achievements of Euratom's research into the GFR system, starting with the 5th Framework programme (FP5) GCFR project in 2000, through FP6 (2005 to 2009) and looking ahead to the proposed activities within the 7th Framework Programme (FP7).
APA, Harvard, Vancouver, ISO, and other styles
2

Twomey, PJ, and DR Pledger. "Estimated GFR." Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 42, no. 3 (2005): 237–48. http://dx.doi.org/10.1258/0004563053857888.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Drukker, W. "Measuring GFR." International Journal of Artificial Organs 10, no. 2 (1987): 129–30. http://dx.doi.org/10.1177/039139888701000213.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rossing, P., K. Rossing, P. Gaede, O. Pedersen, and H. H. Parving. "Estimated GFR." Journal of the American Society of Nephrology 17, no. 8 (2006): 2077–85. http://dx.doi.org/10.1681/01.asn.0000926840.41580.dc.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Stevens, Lesley A., and Andrew S. Levey. "Measured GFR as a Confirmatory Test for Estimated GFR." Journal of the American Society of Nephrology 20, no. 11 (2009): 2305–13. http://dx.doi.org/10.1681/asn.2009020171.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Allison, Susan J. "Estimating GFR and GFR decline in patients with T2DM." Nature Reviews Nephrology 9, no. 5 (2013): 246. http://dx.doi.org/10.1038/nrneph.2013.50.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Nimbolkar, Janardan, Shubha Chogle, Lata Bhandarkar, Aruna Poojary, and Ritu Chandel. "Cystatin GFR better marker than creatinine GFR for accurate prediction of renal dysfunction in diabetic patients: A tertiary care centre study." International Journal of Clinical Biochemistry and Research 9, no. 1 (2022): 53–58. http://dx.doi.org/10.18231/j.ijcbr.2022.010.

Full text
Abstract:
Diabetic and hypertensive patients gradually gets decreased glomerular function. Creatinine starts rising and exhibits decreased kidney function when more than 50% of glomerular function is lost. Cystatin C, a parameter which accesses kidney function accurately predicts GFR. GFR is calculated by measuring Cystatin C and Creatinine. Groups were normal patients, diabetics patients, Comparison of changes of pre and post treatment GFR by Creatinine and Cystatin. Total 57 patient studied 1) Cystatin C GFR is lower than creatinine GFR in 20 normal patients with P value with paired t test is 0.0032 hence prompts early renal evaluation whereas creatinine GFR overestimates renal function. 2) cystatin C GFR in 37 patients with kidney dysfunction and diabetes is less than Creatine GFR with p-value < 0.05 suggests more accurate prediction for renal injury. 3) Cystatin GFR is affected by age and gender 4) Change in Pre and Post treatment of 9 patients with creatinine GFR and cystatin GFR with p-value = 0.47657 > 0.05 but these patients high Creatinine levels on admission which gets normalised with remarkable rise in GFR whereas Cystatin C levels gets marginally decrease suggests renal recovery ongoing. Clearly exhibits Creatinine GFR is overestimates renal function. Patients with normal GFR by Creatinine having raised Cystatin C levels prompts early renal evaluation. Cystatin C is accurately estimating, less affected by variables and predicting severity of renal dysfunction. Thus, Cystatin C GFR better diagnostic and sensitive maker than creatinine GFR for accurate prediction of renal dysfunction in Diabetic patients.
APA, Harvard, Vancouver, ISO, and other styles
8

Schmitz, R., S. Reder, J. Höchel, and H. Hartmann. "Beziehungen zwischen den Werten des endogenen Serumkreatinins und der glomerulären Filtrationsrate (GFR) bei nierengesunden sowie-kranken Hunden und Katzen." Tierärztliche Praxis Ausgabe K: Kleintiere / Heimtiere 36, no. 02 (2008): 111–18. http://dx.doi.org/10.1055/s-0038-1622668.

Full text
Abstract:
Zusammenfassung: Zielstellung: Gleichzeitige Bestimmung des endogenen Serumkreatinins (eSk) und der glomerulären Filtrationsrate (GFR) Hunden und Katzen und retrospektive Untersuchung der diagnostischen Qualität (Sensitivität, Spezifität) des eSk zur Feststellung einer renalen Eubzw. Malfunktion. Material und Methoden: In die Studie gingen 493 Hunde (Alter: 7,0 [3,0–9,0] Jahre) und 278 Katzen (Alter: 10,0 [6,5–12,0] Jahre) aus vier europäischen Ländern ein. Die Hunde/ Katzen gehörten 34/12 verschiedenen Rassen an oder waren Mischlinge. Das veterinärmedizinische Fachpersonal vor Ort führte bei den Tieren einen renalen Funktionstest mit modifizierter Bestimmung der Plasma-Clearance von exogenem Kreatinin zur quantitativen Bestimmung der GFR durch. Das Kreatinin im Serum wurde mittels Jaffé-Methode ermittelt. Die optimalen Grenzwerte für das eSk mit maximaler diagnostischer Sensitivität und Spezifität zur Erkennung einer renalen Eu-/Malfunktion wurden mithilfe der Receiver-OperatingCharacteristic-(ROC-)Analytik bestimmt. Ergebnisse: Von den Hunden erwiesen sich 238 Tiere (48,3%) als nierengesund (GFR ≥ 70% der Norm) und 255 Tiere (51,7%) als unterschiedlich intensiv nierenkrank (GFR < 70% der Norm). Bei den Katzen waren 104 Tiere (37,4%) nierengesund und 174 Tiere (62,6%) nierenkrank. Zur Unterscheidung von nierengesund/-krank ergaben sich für Hunde/Katzen optimale Grenzwerte des eSk von 98/141 μmol/l. Die diagnostische Qualität dieser Grenzwerte war mit der Sensitivität bzw. Spezifität von 77 bzw. 82% (Hunde) und 82 bzw. 73% (Katzen) unzureichend niedrig gegeben. Wiesen die nierenkranken Hunde/Katzen nur noch eine GFR von ≤ 30% der Norm auf, betrugen die optimalen Grenzwerte des eSk 153/274 μmol/l. Ihre diagnostische Qualität war mit der durchschnittlichen Sensitivität bzw. Spezifität von 100 bzw. 89% bei Hunden gut und von 79 bzw. 96% bei Katzen zufrieden stellend gegeben. Klinische Relevanz: Infolge niedriger Werte der diagnostischen Sensitivität bzw. Spezifität eignet sich der eSk-Gehalt bei Hunden und Katzen zur Frühdiagnostik einer renalen Malfunktion nur wenig oder gar nicht. Eine verlässliche Frühdiagnostik erfordert einen renalen Funktionstest mit quantitativer GFR-Bestimmung. Erst nierenkranke Tiere mit einer GFR von nur noch ≤ 30% der Norm können anhand der eSk-Werte diagnostisch gut (Hund) oder zufrieden stellend (Katze) erfasst werden.
APA, Harvard, Vancouver, ISO, and other styles
9

Koshkin, Vadim S., Pedro C. Barata, Haris Zahoor, et al. "Cisplatin-based neoadjuvant chemotherapy (NAC) in bladder cancer patients (Pts) with borderline renal function: Implications for clinical practice." Journal of Clinical Oncology 35, no. 6_suppl (2017): 390. http://dx.doi.org/10.1200/jco.2017.35.6_suppl.390.

Full text
Abstract:
390 Background: Cisplatin-based NAC prior to cystectomy is a standard of care in muscle-invasive bladder cancer (MIBC). There are limited data for pts with borderline glomerular filtration rate (GFR) who get cisplatin-based NAC. Methods: A retrospective review of pts who received cisplatin-based NAC at Cleveland Clinic (2005-2016) was done. Pts with pre-NAC GFR of 40-59 mL/min by either CG or MDRD formula (low GFR group; n = 17) were compared to pts with GFR ≥ 60 (nl GFR group; n = 74) for treatment-related toxicities and outcomes, such as pathologic complete (pCR, pT0N0) and partial response (pPR, < pT2N0), overall survival (OS) and recurrence-free survival (RFS). Comparisons were made using Fisher’s exact, Wilcoxon, or log-rank tests. Results: Pts with low GFR were older (median age 69 vs 64, p = .02) with worse PS (44% vs 20% ECOG > 0, p < .05). Gender, race, hydronephrosis rates and TURBT features (stage, grade, LVI, CIS) did not differ. For NAC, 64 pts got Gem/Cis (49 normal GFR, 15 low GFR), 23 got MVAC (22 normal GFR, 1 low GFR), 4 got other. Low GFR pts were less likely to get MVAC (6% vs 30%, p = .08) and more likely to get split-dose cisplatin (38% vs 18%, p = .10) and have NAC modified (delayed, dose reduced or stopped) (69% vs 36%, p = .02). 4/17 pts (24%) with low GFR and 9/73 (12%) with normal GFR did not complete all planned NAC cycles (p = .26). Hematologic toxicity caused most dose delays but renal toxicity was the most common cause of NAC stoppage (4/9 normal GFR, 3/4 low GFR). NAC cycles completed (median 3 / group) and G-CSF use (31/61 normal GFR, 3/9 low GFR) were comparable. No difference was noted in time to cystectomy (mean 107 days for normal vs 103 days for low GFR from NAC start), surgical complications, length of stay, and either post-NAC or post-cystectomy GFR decline from baseline. Combined pathologic response (pCR/pPR) was higher in normal GFR pts (50% vs 18%, p = .02). OS and RFS at 2 years were 89% and 79% for normal GFR and 78% and 58% for low GFR. Conclusions: Low GFR pts were older with worse PS, had more NAC modifications, lower pCR/pPR and trend for shorter OS & RFS, but most completed planned NAC cycles. For very carefully selected pts with GFR 40-59, cisplatin-based NAC is a treatment option.
APA, Harvard, Vancouver, ISO, and other styles
10

Krawiec, Donald R., A. Robert Twardock, Robert R. Badertscher, Gregory B. Daniel, and Steven J. Dugan. "Use of 99mTc diethylenetriaminepentaacetic acid for assessment of renal function in dogs with suspected renal disease." Journal of the American Veterinary Medical Association 192, no. 8 (1988): 1077–80. https://doi.org/10.2460/javma.1988.192.08.1077.

Full text
Abstract:
Summary The effectiveness of technetium 99m-labeled diethylenetriaminepentaacetic acid (99mTc dtpa) to assess renal function in 13 dogs with suspected renal disease was evaluated. Glomerular filtration rates (actual gfr) were determined on the basis of endogenous creatinine clearance. Predicted gfr were determined by using 99mTc dtpa within 72 hours after the determination of creatinine clearance. The percentage of an iv administered dose of 99mTc dtpa in the kidneys (percentage dose) was determined. Two equations were used to calculate predicted gfr, which were derived from previously reported linear regression analysis of inulin (In) and creatinine (Cr) gfr vs percentage dose 99mTc dtpa in dog kidneys. The correlations of actual gfr vs predicted gfr (In) and actual gfr vs predicted gfr (Cr) were both r = 0.92. The dogs’ mean actual gfr was 1.73 ± 1.35 ml/min/kg. Their mean predicted gfr (In) and predicted gfr (Cr) were 1.92 ± 1.42 ml/min/kg and 1.85 ± 1.27 ml/min/kg, respectively. Therefore, 99mTc dtpa can be used with high accuracy as an agent to predict gfr in dogs with suspected renal disease. The procedure for determining gfr by use of nuclear medicine was rapid and noninvasive and appeared to induce little stress in the animals evaluated.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "GFR"

1

Koryčanský, Roman. "Ventilace tlakové obálky reaktoru GFR." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231459.

Full text
Abstract:
This paper describes the design of the ventilation pressure cover of the demonstrator GFR. The first part is a brief research project GFR and the effects of temperature on the inside structures. In the following part is calculated balance heat losses within the pressure cover for three cases: non-insulated, fully-insulated and partially insulated surface of the reactor. The following is a design of a heat sink for partially insulated surface.
APA, Harvard, Vancouver, ISO, and other styles
2

Mlčúch, Adam. "Opatření pro zmírnění následků těžké havárie reaktoru GFR." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231460.

Full text
Abstract:
This thesis deals with the severe accident of the gas-cooled fast reactor GFR. At the beginning of the study there is a review of the gas-cooled fast reactor subject. Next part is focused on description of possible solutions for severe accidents with emphasis on the solution applied in the Generation III+ reactors. Chapters that deal with material and thermal balance with severe accident of GFR demonstration unit, along with the chapter which analyses features of the corium, create a basis for the conceptual design of core catcher of GFR demonstration unit, which forms the final part of this thesis.
APA, Harvard, Vancouver, ISO, and other styles
3

Eivensitz, Ran. "A QUANTITATIVE ANALYSIS OF PATIENTS WITH POSSIBLE AUGMENTED RENAL CLEARANCE AND ITS RELEVANCE TO PREDOMINANTLY RENALLY EXCRETED DRUGS." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140618_233713-04964.

Full text
Abstract:
Objective of work: the aim of this study was to conduct a retrospective, quantitative, descriptive survey accompanied with a comparative statistical research, in which cases of patients with augmented renal clearance were examined and analyzed regarding the similarities and differences between them and their relevance for possible under-dosage of predominantly renally excreted drugs. Tasks: 1. to detect all cases of lower than 50 µmol/L Scr measurements and calculate possible ARC using Cockcroft-Gault equation in a defined period of time in a Lithuanian hospital in Kaunas. 2. To compare the performance of 3 different equations to distinguish the ARC as assessed by Cockcroft-Gault equation from non-ARC cases. 3. To analyze possible reasons associated with these ARC cases. 4. To search for the cases when predominantly renally excreted drugs were prescribed to these patients.<br>Tikslas darbo: Šio tyrimo tikslas buvo atlikti a posteriori, kiekybinį aprašomąjį tyrimą Kartu su lyginamosios statistinių tyrimų, kuriais atvejais pacientai, sergantys inkstų papildyta klirensas buvo išnagrinėti ir išanalizuoti apie panašumus ir skirtumus tarp jų ir jų svarbą galimo nepakankamo dozę daugiausia išsiskiria pro inkstus narkotikų. Uždaviniai: 1. Aptikti bet mažesnis negu 50 mmol / l SCR matavimų bylas ir apskaičiuoti galimą ARC naudojant Kokrofto-Gault lygtis nustatytą laiką, Lietuvos ligoninę Kaune. 2. Norėdami palyginti iš 3 skirtingų lygčių atskirti ARC, įvertintas Kokrofto-Gault lygtį kokybės iš ne ARC atvejais. 3. Išanalizuoti galimas priežastis, susijusias su šių ARC atvejais. 4. Norėdami ieškoti atvejai, kai daugiausia išsiskiria pro inkstus narkotikų buvo nustatyta, kad šiems pacientams.
APA, Harvard, Vancouver, ISO, and other styles
4

Burniston, Maria Teresa. "Accuracy and value of measurement of GFR in oncology patients." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.521445.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Laho, Tomas, John D. Clarke, Anika L. Dzierlenga, et al. "Effect of nonalcoholic steatohepatitis on renal filtration and secretion of adefovir." PERGAMON-ELSEVIER SCIENCE LTD, 2016. http://hdl.handle.net/10150/621211.

Full text
Abstract:
Adefovir, an acyclic nucleotide reverse transcriptase inhibitor used to treat hepatitis B viral infection, is primarily eliminated renally through cooperation of glomerular filtration with active tubular transport. Nonalcoholic steatohepatitis is a variable in drug disposition, yet the impact on renal transport processes has yet to be fully understood. The goal of this study was to determine the effect of nonalcoholic steatohepatitis on the pharmacokinetics of adefovir in rats given a control or methionine and choline deficient diet to induce nonalcoholic steatohepatitis.
APA, Harvard, Vancouver, ISO, and other styles
6

Gonda, Kathleen A. "Evaluation of Iohexol Clearance to Estimate Glomerular Filtration Rate in Normal Horse Foals." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31934.

Full text
Abstract:
Estimation of the glomerular filtration rate (GFR), accepted as one of the earliest and most sensitive indicators of renal dysfunction, can be determined in horses using standard techniques In adult horses and foals, renal dysfunction can occur as a secondary complication to gastrointestinal disorders, dehydration, septicemia, endotoxemia and nephrotoxic drug administration. Measurement of renal function is an important feature not only in the diagnosis, but also in the prognosis and management of renal disease. Commonly used drugs such as phenylbutazone and gentamicin can be highly nephrotoxic under certain conditions. Of particular concern are those drugs, including the aminoglycoside antibiotics, that are eliminated almost exclusively by the kidney. Knowledge of a patients renal status prior to treatment would direct efforts at; 1) restoring kidney function prior to protracted therapy with potentially damaging drugs, 2) adjusting the dose of a life-saving drug based on the magnitude of dysfunction, or 3) selecting a drug that is not dependant on renal function for elimination. such as endogenous or exogenous renal creatinine clearance. Unfortunately, these techniques can be time consuming, dangerous to perform on fractious patients, require trained personnel and are subject to errors most often associated with improper or incomplete urine collection. Recently, tests using iohexol, a radiographic contrast agent, have been developed to estimate the GFR in human beings, dogs and cats with results that have been validated by traditional standards. Most testing protocols require a single bolus injection of iohexol, followed by 2 or 3 blood samples obtained over a few hours. Compared to traditional testing methods, samples are easily and rapidly obtained making the testing procedure less stressful for the patient. A simple method to measure GFR in horses that does not require urine collection, would allow veterinarians in a clinical setting the ability to determine a patientâ s renal status easily and safely. The objectives of this study were; 1) model the pharmacokinetic profile of iohexol in horse foals, 2) compare creatinine clearance, an accepted standard for GFR determination in patients, with iohexol clearance, and 3) develop sampling parameters and calculation methods for a practical test, based on iohexol clearance, that compares favorably with creatinine clearance in horse foals. Iohexol concentration time data were best described using a 3-compartment open model. Mean creatinine clearance (2.17 ml/min/kg) and mean iohexol clearance (2.15 ml/min/kg) showed good agreement. In addition, GFR values for all foals using either method were within published reference ranges for this species. The results of this study indicate that a single intravenous injection of iohexol at a dose of 150 mg/kg, followed by collection of 2 serum samples at 4 and 6 hours post injection can be used to estimate the GFR in healthy horse foals. Mean corrected GFR value (CLpredicted) for 10 foals in this study was 2.15 ml/min/kg.<br>Master of Science
APA, Harvard, Vancouver, ISO, and other styles
7

Kilbride, Hannah Speranza. "Estimating GFR and the effects of AKI on progression of chronic kidney disease." Thesis, University of Kent, 2015. https://kar.kent.ac.uk/53613/.

Full text
Abstract:
Chronic kidney disease (CKD) is a common health problem with a high prevalence in the elderly and is associated with high mortality rates and co-morbidity. CKD guidelines recommend that diagnosis and staging of CKD be based on estimated glomerular filtration rate (eGFR). Estimating GFR requires estimating equations using the variables gender, race and age and body surface area based on serum creatinine levels. The commonly recommended and used equations are the Modification of Diet in Renal Disease (MDRD) study and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations but these have not yet been validated in elderly people, who are at significant risk of developing CKD. The numbers of patients with progressive CKD is reportedly low with only a small proportion of patients reaching end-stage renal disease (ESRD). This study set out to find out why there is such a disproportion in the high prevalence of CKD and the low incidence of ESRD patients. Many patients die before they reach ESRD but prevalence studies have shown that mortality rates alone do not account for these numbers. I hypothesised that the methods used to estimate GFR underestimate renal function in elderly people causing an overestimate in CKD prevalence. This study firstly set out to assess the accuracy of the MDRD and CKD-EPI equations in an elderly Caucasian population against measured GFR across a wide range of renal function. The study demonstrated both equations perform fairly accurately in the elderly population with a tendency to slightly over-estimate GFR. This study has validated the use of these estimating equations in an elderly Caucasian population disproving my first hypothesis. If the CKD prevalence data is a fair estimate and only a small proportion progress then the answer may lie in how CKD progresses. There are several known factors that influence CKD progression including GFR and albuminuria category, cause of renal disease and hypertension. Some of these risk factors are modifiable and need to be identified and managed in order to impact on long term outcomes including death, cardiovascular events and disease progression. Acute kidney injury (AKI) is also rising in incidence and is complicated by high mortality rates, increased risk of cardiovascular events and more recently CKD progression. Little is known about the impact of more minor episodes occurring in the community on renal outcome. The second part of this study examined the relationship of multiple episodes of community AKI with CKD progression in a population of patients with CKD stage 3-5 referred to renal services. In this observational study, patterns of CKD progression were assessed and multiple AKI events were recorded. This study demonstrated a clear relation between multiple AKI events and CKD progression however only low eGFR at referral, diabetes and albuminuria were independent risk factors associated with disease progression. During the study it emerged that there were two patterns of CKD progression. In comparison to the more commonly assumed linear decline, the more common pattern was a stepwise progressive pattern characterised by accelerated rates of decline followed by a period of stability. Multiple AKI events were significantly more common in the stepwise progressive group suggesting AKI may have an important role as a promoter of CKD progression. This study suggests that community AKI is a modifiable risk factor that needs identifying at early stages in order to minimise risk of poor outcomes including CKD progression.
APA, Harvard, Vancouver, ISO, and other styles
8

Mohr, Susanne. "Praxisgerechte Bestimmung der glomerulären Filtrationsrate (GFR) beim Hund an Hand eines Zwei-Schritt-Verfahrens." Berlin : Mensch-und-Buch-Verl, 2006. http://www.diss.fu-berlin.de/2006/520/index.html.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Viaud, Christophe. "Étude du comportement thermique de l'hélium implanté dans le liner molybdène du Réacteur GFR." Lyon 1, 2009. http://n2t.net/ark:/47881/m6gt5k99.

Full text
Abstract:
Le liner métallique à confiner le matériau combustible des plaques GenIV doit, pour tenir son rôle, supporter « l'agression » des flux de neutrons rapides et d’impuretés implantées (produits de fission, hélium). Le travail de thèse présenté a contribué à la compréhension des mécanismes de fragilisation dans les métaux sous irradiation : il propose un modèle pour la nucléation et la croissance de bulles de gaz tels que l’hélium. L’approche utilisée couple une démarche de modélisation à une démarche expérimentale. Des mesures de relâchement obtenues par les techniques de spectrométrie de masse (TDS) et d’analyse par la réaction nucléaire (NRA) ainsi que des caractérisations par microscopie électronique en transmission (MET) ont été réalisées. Le développement d’un modèle simplifié de dynamique d’amas a permis d’interpréter le couplage entre la dynamique de relâchement de l’hélium et celle des bulles. Ce modèle a permis d’une part, de simuler les expériences d’implantation/récuit à partir d’un jeu de grandeurs physiques cohérentes avec celle de la littérature, et d’autre part, de mettre en évidence un couplage fort entre les concentrations des espèces libres (atomes d’hélium et lacunes) et la composition moyenne des bulles. Les dynamiques singulières de relâchement du gaz observées expérimentalement ont pu être expliquées par le mûrissement d’une population de bulles, initialement « surpressurisées », qui poursuivent leur croissance en réduisant leur concentration totale et leur pression<br>The metal liner dedicated to continue the fuel assembly of the Gas Fast Reactor, is intended to resist to a fast neutron flux and the implantation of impurities such as helium and the fission products. This PhD work contributes to the understanding of one of the mechanisms inducing the metal embrittlement under irradiation; it deals with a model that predicts the nucleation and growth of gas bubbles, such as helium, into a metal. The approach of the thesis relies on both theoretical and experimental works. The gas release measurements have been performed with the Nuclear Reaction Analysis (NRA) method and the Thermal Desorption Spectrometry (TDS); the bubbles characterization performed by Transmission Electronic Microscopy (TEM). The development of a simple model for the description of the cluster dynamic (clusters composed by defects and gas atoms) proposes some explanations for the coupling between the dynamics of the helium release and the bubbles evolution. This model enables to simulate the implantation experiments and the following annealing sequences, with a relevant physical dataset and coherent with the literature. Moreover it enhances the strong inference between the species concentration into the bulk (vacancies and helium atoms) and the mean composition of the bubbles. The peculiar dynamics of the gas release observed during the experiments, initially rapid and then significantly reduced , would be due to the ripening of the bubbles, pressurized after the room temperature implantation, which keep on growing and reducing their concentration and internal pressure
APA, Harvard, Vancouver, ISO, and other styles
10

Rubel, Johanna [Verfasser]. "Bedeutung der GFR-adjustierten Harnsäureberechnung zur Prädiktion von kardialer Morbidität und Mortalität / Johanna Rubel." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2021. http://d-nb.info/1237104963/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "GFR"

1

Zaltzman, Jeffrey Steven. Timed creatinine clearance using oral cimetidine (TCC) an assessment of a novel test of glomerular filtration rate (GFR). National Library of Canada, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Boon, A. G. Report of a visit by members and staff of WRc to Germany (GFR) to investigate the root zone method for treatment of wastewaters. WRC, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Saradēśapāṇḍe, Yaśavanta. Gir... gir... girmiṭ. Sāhitya Prakāśana, 2012.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dyck, Ger van. Ger. SDU Uitgeverij, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Maĭdar, D. Mongġol ger. Ȯbȯr Mongġol-un Soyul-un Keblel-u̇n Qoriy-a, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Maio, Luís. Afectivamente GNR. Assírio & Alvim, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

compiler, Baṭ Ḥasām, ed. Bāzī gar. Al-Quresh Pablīkeshanz, 2014.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

L, Grima, and University of Toronto. Dept. of Geography., eds. GGR 234S. Custom Publishing Service, University of Toronto Bookstores, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Raḥmān, Bushrá. Cārah gar. Vat̤an Dost, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rahat, M. A. Badshah gar. Maqbool Academy, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "GFR"

1

Findlay, Mark, and Christopher Isles. "Assessment of GFR." In Clinical Companion in Nephrology. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14868-7_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fairweather, Jack, Mark Findlay, and Christopher Isles. "Assessment of GFR." In Clinical Companion in Nephrology. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38320-6_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Nahler, Gerhard. "glomerular filtration rate (GFR)." In Dictionary of Pharmaceutical Medicine. Springer Vienna, 2009. http://dx.doi.org/10.1007/978-3-211-89836-9_608.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Cheng, Hwee Ming. "Renal Hemodynamics and GFR." In Physiology Question-Based Learning. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-12790-3_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hamilton, David. "GFR Single Sample Equations." In Diagnostic Nuclear Medicine. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-06588-4_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Zhang, Yunong, Dechao Chen, and Chengxu Ye. "Application to GFR Estimation." In Toward Deep Neural Networks. Chapman and Hall/CRC, 2019. http://dx.doi.org/10.1201/9780429426445-25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Doornebal, Joan. "De nierfunctie: glomerulaire filtratiesnelheid (GFR)." In Inzichten in de nefrologie. Bohn Stafleu van Loghum, 2014. http://dx.doi.org/10.1007/978-90-368-0838-5_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Brown, Stephen. "Measurement of Glomerular Filtration Rate (GFR)." In Imaging and Technology in Urology. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2422-1_30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Brown, Stephen. "Measurement of Glomerular Filtration Rate (GFR)." In Imaging and Technology in Urology. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26058-2_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chiang, W. H., C. Cordes, W. Kinzelbach, and S. Z. Fang. "GFR - 3D-Finite-Elemente-Modell zur Grundwasserströmungsberechnung." In Altlastenhandbuch des Landes Niedersachsen Materialienband. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-61124-7_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "GFR"

1

Quintelier, Jan, Pieter Samyn, Patrick De Baets, Danny Van Hemelrijck, and Joris Degrieck. "WEAR MECHANISMS OF PULTRUDED GFR COMPOSITE PLATES." In 60º Congresso Anual da ABM. Editora Blucher, 2005. https://doi.org/10.5151/2594-5327-2005-13668-0362.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Sabli, M., Pawenary, and Ridha Yasser. "Optimization of OCR/GFR Relay For 150 KV Transmission Protection Systems Line 2 Siantan-Seiraya." In 2024 6th International Conference on Power Engineering and Renewable Energy (ICPERE). IEEE, 2024. https://doi.org/10.1109/icpere63447.2024.10845504.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gayathri Hegde, M., Priyanka S. Marellavar, G. Sunil Kumar, P. Deepa Shenoy, K. R. Venugopal, and C. Arvind. "A WebApp Framework for the prediction of e-GFR value and CKD stage using Regression-based Machine Learning Algorithms." In 2024 IEEE 5th India Council International Subsections Conference (INDISCON). IEEE, 2024. http://dx.doi.org/10.1109/indiscon62179.2024.10744278.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Peng, Chen, Jingrong Yu, Wenxuan Yao, Jiaqi Yu, and Hankang Tian. "Grid Impedance Estimation for Hybrid GFL and GFM Systems." In 2025 7th Asia Energy and Electrical Engineering Symposium (AEEES). IEEE, 2025. https://doi.org/10.1109/aeees64634.2025.11019996.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zhang, Xiaonan, Ziyang Huang, Zihan Wang, Gengyin Li, Le Zheng, and Shiwei Xia. "Transient Stability Analysis for Hybrid GFM-GFL Systems with Current Limit." In 2024 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2024. http://dx.doi.org/10.1109/pesgm51994.2024.10688760.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Li, Jianhua, Yifei Meng, Jianyu Lu, Yuanyuan Sun, Rui Yin, and Shanshan Wang. "Small-Signal Stability Analysis of Grid-Tied GFL/GFM VSCs System." In 2024 IEEE International Conference on DC Technologies and Systems (DCTS). IEEE, 2024. https://doi.org/10.1109/dcts62535.2024.10939639.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Chen, Yuntao, Yin Chen, Hui Xiong, Xia Chen, and Kezan Zhang. "Stability Region Analysis of the GFL-GFM System Based on Impedance Method." In 2024 7th International Conference on Power and Energy Applications (ICPEA). IEEE, 2024. https://doi.org/10.1109/icpea63589.2024.10784576.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Fan, Yiwen, Minxiao Han, Shuozhe Wang, and Wenqiang Xie. "Nonlinear Dynamics Analysis of GFL and GFM Converters Based on Hamiltonian Theory." In IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2024. https://doi.org/10.1109/iecon55916.2024.10905915.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zheng, Kun, Chao Luo, Zhiyuan Sun, Yihua Zhu, and Jiawei Yu. "Impedance Network Modeling of GFL and GFM Converters System Considering AC/DC Couplings." In 2024 The 9th International Conference on Power and Renewable Energy (ICPRE). IEEE, 2024. https://doi.org/10.1109/icpre62586.2024.10768311.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Song, Shuxin, Kaiqi Sun, Ke-Jun Li, et al. "An Improved Mixture Ratio Control Strategy for Zero-Disturbance Switching of GFM and GFL." In 2024 IEEE Industry Applications Society Annual Meeting (IAS). IEEE, 2024. https://doi.org/10.1109/ias55788.2024.11023705.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "GFR"

1

J. R. Parry. GFR Sub-Assembly Shielding Design Studies. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/911268.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

K. D. Weaver, T. C. Totemeier, D. E. Clark, et al. Gas-Cooled Fast Reactor (GFR) FY04 Annual Report. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/911236.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

K. D. Weaver, T. Marshall, T. Totemeier, et al. Gas-Cooled Fast Reactor (GFR) FY05 Annual Report. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/911777.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

K. D. Weaver, L-Y. Cheng, H. Ludewig, and J. Jo. Gas-Cooled Fast Reactor (GFR) Decay Heat Removal Concepts. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/911253.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

M.J. Driscoll, P. Hejzlar, and G. Apostolakis. Optimized, Competitive Supercritical-CO2 Cycle GFR for Gen IV Service. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/937204.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wright, Steven Alan, Edward J. ,. Jr Parma, Ahti Jorma Suo-Anttila, et al. Supercritical CO2 direct cycle Gas Fast Reactor (SC-GFR) concept. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1013226.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kevan D. Weaver. Interim Status Report on the Design of the Gas-Cooled Fast Reactor (GFR). Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/911014.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Weaver, K. D. Interim Status Report on the Design of the Gas-Cooled Fast Reactor (GFR). Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/862023.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Kevan D. Weaver and Thomas Y. C. Wei. Initial Requirements for Gas-Cooled Fast Reactor (GFR) System Design, Performance, and Safety Analysis Models. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/911212.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hoffman, E. A., R. F. Kulak, I. U. Therios, and T. Y. C. Wei. Generation IV nuclear energy system initiative. Large GFR core subassemblydesign for the Gas-Cooled Fast Reactor. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/899333.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'GFR' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography