Academic literature on the topic 'RFT tool'
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Journal articles on the topic "RFT tool"
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Treadwell, Marsha, Shirley Johnson, India Sisler, et al. "Development of a sickle cell disease readiness for transition assessment." International Journal of Adolescent Medicine and Health 28, no. 2 (2016): 193–201. http://dx.doi.org/10.1515/ijamh-2015-0010.
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Abstract Background: Instrumentation with established reliability and validity is not yet routinely utilized to assess readiness for transition from pediatric to adult care for youth and young adults with chronic conditions, including sickle cell disease (SCD). Objective: The aim of this study was to develop a SCD specific readiness for transition assessment tool. Subjects: Fifty-seven youths with SCD, ages 15–21 years, completed the initial version of the Transition Intervention Program – Readiness for Transition (TIP-RFT) assessment; 113 youths/young adults with SCD, ages 14–26 years, at two distinct sites of care completed a refined version of the TIP-RFT. Methods: The TIP-RFT was constructed based on a literature review, provider and patient consensus and assessed domains including knowledge and skills in medical self-care, social support, health benefits and independent living and educational/vocational skills. We used principal components factor analysis to evaluate TIP-RFT responses and assessed differences in TIP-RFT scores in relation to age, gender, sickle cell diagnosis and site of care. Results: The original TIP-RFT, which had demonstrated face validity, was reduced from 56 to 22 items. The revised instrument consisting of four subscales demonstrated good internal consistency reliability and construct validity. Conclusion: Our results support that the TIP-RFT is a valid and reliable tool for the assessment of transition readiness for youths with SCD. The TIP-RFT assessment can guide interventions to improve transition readiness and can provide a foundation for future research on other variables that might be associated with transition readiness.
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Maskos, Andreas, Moritz L. Schmidbauer, Stefan Kunst, et al. "Diagnostic Utility of Temporal Muscle Thickness as a Monitoring Tool for Muscle Wasting in Neurocritical Care." Nutrients 14, no. 21 (2022): 4498. http://dx.doi.org/10.3390/nu14214498.
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Temporalis muscle (TM) atrophy has emerged as a potential biomarker for muscle wasting. However, its diagnostic utility as a monitoring tool in intensive care remains uncertain. Hence, the objective of this study was to evaluate the diagnostic value of sequential ultrasound- and computed tomography (CT)-based measurements of TM thickness (TMT). With a prospective observational design, we included 40 patients without preexisting sarcopenia admitted to a neurointensive care unit. TMT measurements, performed upon admission and serially every 3–4 days, were correlated with rectus femoris muscle thickness (RFT) ultrasound measurements. Interrater reliability was assessed by Bland Altmann plots and intraclass correlation coefficient (ICC). Analysis of variance was performed in subgroups to evaluate differences in the standard error of measurement (SEM). RFT decline was paralleled by ultrasound- as well as CT-based TMT measurements (TMT to RFT: r = 0.746, p < 0.001; CT-based TMT to ultrasound-based RFT: r = 0.609, p < 0.001). ICC was 0.80 [95% CI 0.74, 0.84] for ultrasound-based assessment and 0.90 [95% CI 0.88, 0.92] for CT-based TMT measurements. Analysis of variance for BMI, Heckmatt score, fluid balance, and agitation showed no evidence of measurement errors in these subgroups. This study demonstrates the clinical feasibility and utility of ultrasound- and CT-based TMT measurements for the assessment of muscle wasting.
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Cabanillas-Balsera, Daniel, Juan J. Segura-Egea, María Bermudo-Fuenmayor, et al. "Smoking and Radiolucent Periapical Lesions in Root Filled Teeth: Systematic Review and Meta-Analysis." Journal of Clinical Medicine 9, no. 11 (2020): 3506. http://dx.doi.org/10.3390/jcm9113506.
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Aim: This systematic review and meta-analysis aimed to investigate the association between smoking habits and the prevalence of radiolucent periapical lesions (RPLs) in root-filled teeth (RFT). Methods: The Population, Intervention, Comparison, and Outcome (PICO) question was: in adult patients who have RFT, does the absence or presence of a smoking habit affect the prevalence of RPLs associated with RFT? Systematic MEDLINE/PubMed, Wiley Online Database, Web of Science, Scopus, and PRISMA protocol were used to evaluate and present the results. Studies comparing smokers with control non-smoker subjects, including RFT, and providing data on the prevalence of RFT with RPLs, were included. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system was used for certainty in the evidence. The risk of bias was assessed according to Cochrane Collaboration common scheme for bias and ROBINS-I tool. Cumulative meta-analysis was performed with a random effects model. PROSPERO registration code: CRD42020165279. Results: Four studies reported data on inclusion criteria, representing data from 9257 root-filled teeth—4465 from non-smokers and 4792 from smoker patients. The meta-analysis provided an odds ratio indicating a significant association between smoking and higher prevalence of root filled teeth with radiolucent periapical lesions (OR = 1.16; 95% CI = 1.07–1.26; p = 0.0004). The certainty of the literature assessment was moderate per GRADE. The ROBINS-I tool classified three studies as low risk of bias, and the fourth as moderate risk of bias. Conclusions: Moderate, quality scientific evidence indicates a weak but significant relationship between smoking and the prevalence of RPLs in RFT. Smoking can be considered a negative prognostic factor for the outcome of root canal treatment. Endodontic providers should be aware of the relationship between smoking and persistent apical periodontitis, assessed as RPLs, in RFT.
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Cabanillas-Balsera, Daniel, Juan J. Segura-Egea, María C. Jiménez-Sánchez, et al. "Cigarette Smoking and Root Filled Teeth Extraction: Systematic Review and Meta-Analysis." Journal of Clinical Medicine 9, no. 10 (2020): 3179. http://dx.doi.org/10.3390/jcm9103179.
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Aim: The aim of this systematic review and meta-analysis was to investigate the possible association between smoking habits and the occurrence of root-filled teeth (RFT) extraction. Material and Methods: The Population, Intervention, Comparison, and Outcome (PICO) question was in adult patients who had RFT, does the absence or presence of smoking habits affect the prevalence of extracted RFT? Systematic MEDLINE/PubMed, Wiley Online Database, Web of Science, and PRISMA protocol was used to evaluate and present the results. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system was used for certainty in the evidence. The risk of bias was assessed according to Cochrane Collaboration common scheme for bias and ROBINS-I tool. Cumulative meta-analysis was performed with a random effects model. PROSPERO registration code: CRD42020165279. Results: After search strategy, 571 articles were recovered, seven were selected for full-text analysis, and two reported data on inclusion criteria, including 516 RFT, 351 in non-smokers, and 165 in smoker subjects. The meta-analysis provided an odds ratio indicating significant association between smoking and the prevalence of extracted RFT (OR = 3.43, 95% CI = 1.17–10.05, p = 0.02, I² = 64%). The certainty of the literature assessment was low per GRADE. Both studies were considered as moderate risk of bias. Conclusions: Tobacco smoking should be considered a negative prognostic factor for the outcome of root canal treatment, although the quality of the evidence is low. RFT of smoking patients are three times more likely to be extracted. Continuing to smoke after endodontic treatment may increase the risk of treatment failure. However, the overall strength of evidence is low. This must be considered a limitation of the present study and the conclusion should be valued with caution.
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Hema Shankari, K., and R. Thirumalai Selvi. "Methodology for regression testing with open source tool." International Journal of Engineering & Technology 7, no. 1.1 (2017): 133. http://dx.doi.org/10.14419/ijet.v7i1.1.9212.
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The paper describes our methodology for optimizing regression testing that forms a major part of software maintenance. It necessitates the use of an automated testing tool, and we have selected Selenium, an open source tool. For simple projects, a formula is proposed that has been derived through data mining with Selenium. A genetic algorithm is added to this methodology for industry based projects, where the test cases are so large that they have to be grouped as Test Suites; this algorithm reconfigures Test suites in each cycle of regression testing. Commonly used APFD metric ignores fault severity but is included in our formula; this severity is determined by professional testers. The use of ANN to amend severity without manual intervention enhances the genetic algorithm. Tables presented in the paper are from both simple and industry projects. Comparison is made with IBM’S RFT, a proprietary tool for automated testing.
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Elhaddad, Elnori, Boshnaf Shafter, Abd Alatie Arebi, and Monieb Shawesh. "A method for determining fluids contact and identifying types of reservoir fluids in the F3-sandstone reservoir, field case study in Libya." Journal of Pure & Applied Sciences 20, no. 4 (2021): 188–96. http://dx.doi.org/10.51984/jopas.v20i4.1786.
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This research study focuses on the use of tools for well X05-NC169a in (X field) in Libya. Tools such as reservoir saturation tool and repeat formation tool used in this study. F3-Sand Stone is the main reservoir and has a gross thickness ranging from 130 to 187 feet. The aim of this study is to identify the type of fluid and to determine fluid contacts in the F3 - Sand Stone Reservoir. The study was based on a petro-physical evaluation on the well X05-NC169a by using log data (Gamma Ray Log, Resistivity Log, Neutron Log and Density Log). The Techlog software was used to analyze the log data, while the Surfer software was used for mapping. The results indicate that it has a hydrocarbon and water column. Apart from combining the petro-physical results of well tests ( RFT data and RST) is to define the reservoir fluids type. The fluid contacts changed when the hydrocarbon fluid level decreased. The most dominant Hydrocarbon in the reservoir, according to RFT, RST, and Petro-physics data, is predominantly two phases. Zones of gas and oil.
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Pataky, Todd C. "Power1D: a Python toolbox for numerical power estimates in experiments involving one-dimensional continua." PeerJ Computer Science 3 (July 3, 2017): e125. http://dx.doi.org/10.7717/peerj-cs.125.
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The unit of experimental measurement in a variety of scientific applications is the one-dimensional (1D) continuum: a dependent variable whose value is measured repeatedly, often at regular intervals, in time or space. A variety of software packages exist for computing continuum-level descriptive statistics and also for conducting continuum-level hypothesis testing, but very few offer power computing capabilities, where ‘power’ is the probability that an experiment will detect a true continuum signal given experimental noise. Moreover, no software package yet exists for arbitrary continuum-level signal/noise modeling. This paper describes a package called power1d which implements (a) two analytical 1D power solutions based on random field theory (RFT) and (b) a high-level framework for computational power analysis using arbitrary continuum-level signal/noise modeling. First power1d’s two RFT-based analytical solutions are numerically validated using its random continuum generators. Second arbitrary signal/noise modeling is demonstrated to show how power1d can be used for flexible modeling well beyond the assumptions of RFT-based analytical solutions. Its computational demands are non-excessive, requiring on the order of only 30 s to execute on standard desktop computers, but with approximate solutions available much more rapidly. Its broad signal/noise modeling capabilities along with relatively rapid computations imply that power1d may be a useful tool for guiding experimentation involving multiple measurements of similar 1D continua, and in particular to ensure that an adequate number of measurements is made to detect assumed continuum signals.
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Zeigler, Spencer D., James R. Metcalf, and Rebecca M. Flowers. "A practical method for assigning uncertainty and improving the accuracy of alpha-ejection corrections and eU concentrations in apatite (U–Th) ∕ He chronology." Geochronology 5, no. 1 (2023): 197–228. http://dx.doi.org/10.5194/gchron-5-197-2023.
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Abstract. Apatite (U–Th) / He (AHe) dating generally assumes that grains can be accurately and precisely modeled as geometrically perfect hexagonal prisms or ellipsoids in order to compute the apatite volume (V), alpha-ejection corrections (FT), equivalent spherical radius (RFT), effective uranium concentration (eU), and corrected (U–Th) / He date. It is well-known that this assumption is not true. In this work, we present a set of corrections and uncertainties for V, FT, and RFT aimed (1) at “undoing” the systematic deviation from the idealized geometry and (2) at quantifying the contribution of geometric uncertainty to the total uncertainty budget for eU and AHe dates. These corrections and uncertainties can be easily integrated into existing laboratory workflows at no added cost, can be routinely applied to all dated apatite, and can even be retroactively applied to published data. To quantify the degree to which real apatite deviates from geometric models, we selected 264 grains that span the full spectrum of commonly analyzed morphologies, measured their dimensions using standard 2D microscopy methods, and then acquired 3D scans of the same grains using high-resolution computed tomography (CT). We then compared our apatite 2D length, maximum width, and minimum width measurements with those determined by CT, as well as the V, FT, and RFT values calculated from 2D microscopy measurements with those from the “real” 3D measurements. While our 2D length and maximum width measurements match the 3D values well, the 2D minimum width values systematically underestimate the 3D values and have high scatter. We therefore use only the 2D length and maximum width measurements to compute V, FT, and RFT. With this approach, apatite V, FT, and RFT values are all consistently overestimated by the 2D microscopy method, requiring correction factors of 0.74–0.83 (or 17 %–26 %), 0.91–0.99 (or 1 %–9 %), and 0.85–0.93 (or 7 %–15 %), respectively. The 1σ uncertainties in V, FT, and RFT are 20 %–23 %, 1 %–6 %, and 6 %–10 %, respectively. The primary control on the magnitude of the corrections and uncertainties is grain geometry, with grain size exerting additional control on FT uncertainty. Application of these corrections and uncertainties to a real dataset (N=24 AHe analyses) yields 1σ analytical and geometric uncertainties of 15 %–16 % in eU and 3 %–7 % in the corrected date. These geometric corrections and uncertainties are substantial and should not be ignored when reporting, plotting, and interpreting AHe datasets. The Geometric Correction Method (GCM) presented here provides a simple and practical tool for deriving more accurate FT and eU values and for incorporating this oft neglected geometric uncertainty into AHe dates.
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Wang, Ran, Ying Han, and Lijuan Lu. "Computer-Assisted Design Template Guided Percutaneous Radiofrequency Thermocoagulation through Foramen Rotundum for Treatment of Isolated V2 Trigeminal Neuralgia: A Retrospective Case-Control Study." Pain Research and Management 2019 (March 3, 2019): 1–6. http://dx.doi.org/10.1155/2019/9784020.
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Objective. Radiofrequency thermocoagulation (RFT) through the foramen rotundum has emerged as an alternative for treatment of isolated V2 trigeminal neuralgia. But puncture of the foramen rotundum is difficult and time-consuming. In current study, we introduced the application of a computer-assisted design (CAD) template to guide foramen rotundum cannulation. Meanwhile, we assessed its safety and efficacy in the treatment of isolated V2 trigeminal neuralgia. Methods. From November 2015 to August 2017, thirty-eight patients with isolated V2 trigeminal neuralgia were treated with computed tomography- (CT-) guided RFT through the foramen rotundum in our institution. All cases were reviewed, and patients were divided into the experimental group (n=17, puncture with a CAD template) and control group (n=21, free-hand puncture) according to the puncture method used. The puncture times, duration of puncture, and duration of operation were collected. The outcome of pain remission was evaluated utilizing the Barrow Neurological Institute’s (BNI) pain score. Complications and recurrence of pain were also recorded. Data were compared between groups. Results. The rate of one-time successful puncture in the experimental group was obviously higher than that in the control group. Mean puncture times in the experimental group was fewer. Average duration of puncture and operation in the experimental group was also shorter than that in the control group. All patients experienced good pain remission (BNI Class I or II) postoperatively. At four follow-up points (7 days, 3 months, 6 months, and 12 months after operation), there was no significant difference in good pain relief rate between the two groups. Meanwhile, no significant difference was found in complications. Conclusions. CAD template is a safe and precise navigation instrument for RFT treatment of isolated V2 trigeminal neuralgia via the foramen rotundum. Therefore, this novel tool is worthy of clinical promotion.
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Alhossary, Amr, Wei Tech Ang, Karen Sui Geok Chua, et al. "Identification of Secondary Biomechanical Abnormalities in the Lower Limb Joints after Chronic Transtibial Amputation: A Proof-of-Concept Study Using SPM1D Analysis." Bioengineering 9, no. 7 (2022): 293. http://dx.doi.org/10.3390/bioengineering9070293.
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SPM is a statistical method of analysis of time-varying human movement gait signal, depending on the random field theory (RFT). MovementRx is our inhouse-developed decision-support system that depends on SPM1D Python implementation of the SPM (spm1d.org). We present the potential application of MovementRx in the prediction of increased joint forces with the possibility to predispose to osteoarthritis in a sample of post-surgical Transtibial Amputation (TTA) patients who were ambulant in the community. We captured the three-dimensional movement profile of 12 males with TTA and studied them using MovementRx, employing the SPM1D Python library to quantify the deviation(s) they have from our corresponding reference data, using “Hotelling 2” and “T test 2” statistics for the 3D movement vectors of the 3 main lower limb joints (hip, knee, and ankle) and their nine respective components (3 joints × 3 dimensions), respectively. MovementRx results visually demonstrated a clear distinction in the biomechanical recordings between TTA patients and a reference set of normal people (ABILITY data project), and variability within the TTA patients’ group enabled identification of those with an increased risk of developing osteoarthritis in the future. We conclude that MovementRx is a potential tool to detect increased specific joint forces with the ability to identify TTA survivors who may be at risk for osteoarthritis.
Dissertations / Theses on the topic "RFT tool"
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Lin, Chungping. "The RMT (Recursive multi-threaded) tool: A computer aided software engineeering tool for monitoring and predicting software development progress." CSUSB ScholarWorks, 1998. https://scholarworks.lib.csusb.edu/etd-project/1787.
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Pigatto, Leonardo. "Advanced Tools for Three-Dimensional Modeling and Control of Thermonuclear Fusion Devices." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3422889.
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This thesis represents the summary of the research activities carried out during a three-years Ph.D. project. The work is divided into two parts, with the common feature of investigating the physical properties related to stability and control of Magneto-Hydro-Dynamic modes in fusion relevant plasmas. One of the aims of the work is to better understand the interaction between such plasmas and a wide range of 3-dimensional electro-magnetic boundary conditions. This part of the research has been carried out on the RFX-mod device, where advanced control strategies have been developed thanks to its state-of-the-art magnetic feedback system. A variety of interlaced problems have been addressed, starting with the improvement of the vacuum magnetic field spectrum through actuator-sensor decoupling, compensation of broken or deactivated coils with simple and real-time applicable strategies and multi-modal Resistive Wall Mode control with varying coil number and geometry. This has allowed to develop relevant control optimization techniques and knowledge for both the Reversed Field Pinch and Tokamak configurations. The former is an excellent playground for RWM studies, given the instability spectrum that is naturally developing. For the latter configuration instead, RWM stability is considered to be one major milestone to be achieved along the road to a commercial fusion reactor. The second part of the work is dedicated to this issue, and deals with the stability properties of Advanced Tokamak scenarios, with reference to the JT-60SA experiment in particular. Studies to understand RWM physics in high beta plasmas, where fluid rotation profiles and hot ions populations from Neutral Beams can play an important role, have been carried out with the MARS-F/K linear MHD codes. If detailed physics such as kinetic effects is coupled to a simplified description of the passive/active structures on one side, on the other hand a simplified plasma can be coupled to a complex 3-D model of the structures to assess realistic active control capabilities of a given system. Different tools are used and described for studying RWM damping physics, and to five a proof-of-principle for feedback control of such instabilities in Advanced Tokamak plasmas operating beyond the no-wall pressure limit.<br>Questa tesi rappresenta la raccolta delle attività svolte durante i tre anni di un progetto di Dottorato di Ricerca. Il lavoro è stato diviso principalmente in due parti, con il comune denominatore di investigare le problematiche relative alla stabilità e al controllo di instabilità Magneto-Idro-Dinamiche in plasmi di interesse fusionistico. Uno dei principali obiettivi di questo lavoro è lo studio di come questi plasmi interagiscano con diverse condizioni al contorno, strutturali ed elettro-magnetiche, con caratteristiche tridimensionali. Questa parte della ricerca è stata svolta sull'esperimento RFX-mod, dove è stato possibile sviluppare peculiari strategie di controllo grazie all'avanzato sistema di controllo attivo. Sono state affrontate varie problematiche tra loro interconnesse, a partire dallo sviluppo di tecniche per il miglioramento del contenuto armonico dei campi magnetici di vuoto tramite disaccoppiamento attuatori-sensori. Da ciò è stato sviluppato un metodo semplificato e applicabile in tempo reale per la compensazione di attuatori rotti o disattivati, con il medesimo obiettivo di migliorare il contenuto armonico dei campi magnetici prodotti dal sistema di controllo reale. A conclusione di questa parte il controllo multi-modale di modi di parete resistiva (RWM) è stato affrontato, dal punto di vista modellistico e sperimentale. Le strategie sviluppate e gli studi effettuati sono rilevanti sia per la configurazione Reversed Field Pinch sia per il Tokamak. Il primo è un ottimo terreno di prova per studiare i modi RWM, per via dello spettro di instabilità che naturalmente sviluppa. Per la seconda configurazione invece, la stabilizzazione dei modi RWM è considerato uno dei principali obiettivi da raggiungere sulla strada verso un reattore a fusione commerciale. La seconda parte del lavoro è relativa proprio alla problematica della stabilità RWM nella configurazione Tokamak, in particolar modo negli scenari avanzati in fase di sviluppo per l'esperimento JT-60SA. Una serie di studi è stata portata avanti con i codici MARS-F/K per determinare le proprietà dei modi RWM in plasmi ad alto beta, nei quali i profili di rotazione e le popolazioni di ioni sovra termici provenienti dagli iniettori di neutri possono giocare un ruolo importante. Da un lato una descrizione dettagliata del plasma, includendo gli effetti cinetici, è stata accoppiata a un modello semplificato e bidimensionale delle strutture passive. D'altra parte una più semplice descrizione del plasma è stata considerata per l'accoppiamento con un modello dettagliato e tridimensionale delle strutture attive e passive, in quest'ultimo caso è stato possibile sviluppare un modello di controllo attivo in catena chiusa dei modi RWM.
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Sjöström, Elin. "Virtual Reality as a Sales Tool for Industrial Companies." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105504.
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To display large and complex products at sales meetings or fairs can be a challenge for industrial companies. Customers want to experience the product before purchase, yet this is not always possible due to high shipping costs and logistic problems. Virtual Reality (VR) achieved by Head-mounted Displays (HMD) is growing bigger by every day and is becoming accessible to more people. With this technology, there must be a new way to facilitate the sales process in the industry. The first goal with this master thesis was to investigate what challenges and opportunities there are in today’s sales process and develop a concept for a sales tool that uses the VR technology. The second goal was to explore how today’s technology could evolve and how the future sales process could work. To achieve these goals the Research Learning Spiral was used together with interviews and a workshop. By investigating how the sales process works in today’s industry, through interviews with people that are active in the field and a workshop, a number of challenges were identified. Three of these challenges were: to display large and complex products to the customers, to know what arguments that triggers a specific customer and to explain advantages with the product to the customer. Based on data from the interviews a prototype of a sales tool using VR was designed. The goal with the prototype was to counteract the challenges found in today’s sales process. The prototype uses a tablet where the salesman can control a 3D visualization of the product through a menu with different choices. This tablet is connected to the Samsung Gear VR, which is a VR device that uses a HMD to achieve VR, where the customer can experience the product in a virtual environment controlled by the salesman. With data from the interviews together with a conducted workshop, suggestions for the future sales process were obtained. The future sales process is very likely to use VR as a tool to both display products and to reduce traveling. The technology will possibly be smarter and be able to facilitate the sales process, for instance through artificial intelligence, smart materials and 3D printing. VR as a sales tool for large and complex products has the potential to be a great aid for the salesman during the sales process. Companies will not be required to ship large and complex products to fairs or meetings which will save money for the company and also contribute to less impact on the environment. This area of research is fairly new and there are a lot of opportunities still to be investigated.
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White, Paul. "An immersive virtual reality navigational tool for diagnosing and treating neurodegeneration." Libertas, 2016. http://hdl.handle.net/1993/31979.
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One of the earliest symptoms of Alzheimer’s Disease (AD) is a loss of spatial navigation. In this work, we improved an existing screening test for AD that analyzed a patient’s spatial navigation ability. The existing screening test was made more immersive, and therefore more reliable, by integrating support for a leading-edge consumer-targeted Head-Mounted Display (HMD). This integration brought some technical and usability challenges, that were addressed. Furthermore, we investigated the rehabilitative potential of Virtual Reality Navigational (VRN) activities in two case studies: an Early Stage AD (ESA) participant and a Late Stage AD (LSA) participant. We found that the ESA participant was able to significantly improve his navigation skills, and we observed some qualitative improvements in memory and navigation in his personal life. The LSA participant did not improve noticeably at the VRN tasks, but his mood improved after participating in the treatment sessions. These case studies suggested that VRN treatment may be beneficial for people with AD, especially at the onset stage.<br>February 2017
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Bolat, Murat. "Instrumentation tool for context-aware optimization." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 64 p, 2009. http://proquest.umi.com/pqdweb?did=1885467641&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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DUNKER, PHILIP KUSTER. "A LOW-COST TELEPRESENCE TOOL USING OCULUS RIFT: DEVELOPMENT AND EVALUATION IN A VIDEOCONFERENCE SCENARIUM." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=27726@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Telepresença refere-se a um conjunto de tecnologias que permite uma pessoa se sentir como se estivesse presente em um lugar que não seja a sua verdadeira localização. Esses equipamentos costumam usar uma câmera comum para filmar o que está acontecendo em um ambiente e transmitir ao vivo em televisões ou monitores para o usuário em outro ambiente. Algumas vezes as câmeras podem ser controladas através de dispositivos como teclado ou joysticks. Neste trabalho apresentamos uma ferramenta composta por um head-mounted display (HMD), o Oculus Rift DK1, integrado com um dispositivo nomeado de cabeça remota (CR), capaz de filmar usando uma câmera estéreo e transmitir para o Oculus Rift as imagens em 3D. Ao mesmo tempo, o giroscópio do HMD captura a orientação da cabeça do usuário e envia para a cabeça remota, que possui servo motores capazes de girá-la a fim de possibilitar o usuário movimentar a câmera estéreo sem nenhum dispositivo adicional. O objetivo é proporcionar uma experiência de telepresença imersiva, com uma interface de baixo custo e simples de usar. Foram realizados testes com usuários com cenários experimentais, que indicaram o benefício da ferramenta em videoconferências.<br>Telepresence refers to a set of technologies that allows a person to feel as if he is in a place other than his true location. Such equipment uses an ordinary camera to film what is happening in an environment and transmits it alive on televisions or monitors to the user in another environment. Sometimes the cameras can be controlled through devices such as keyboards or joysticks. This dissertation presents a tool composed of a head-mounted display (HMD), we used the Oculus Rift DK1, integrated with a device called remote head, able to film with a stereo camera and to transmit to the Oculus Rift the images in 3D. At the same time, the HMD s gyroscope captures the user s head orientation and sends it to the remote head, which has servo motors able to rotate it in order to allow the user to move the stereo camera without any additional device. The project s goal is to provide the user an experience of immersive telepresence, with a low cost and a simple interface. Some tests with users were performed and indicated the benefit of the tool for videoconferencing.
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Kuo, Yi-Chiun. "Multi-database support in the recursive multi-threaded software process management tool." CSUSB ScholarWorks, 2002. https://scholarworks.lib.csusb.edu/etd-project/2266.
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The Recursive Multi-Threaded (RMT) software process management tool gives software developers the following capabilities: break a large project into a sequence of prototypes (or threads) track these threads individually, and estimate the progress and completion date of the project from these individual threads. The goal of this project is to provide the RMT Tool with an ability to support multi-database for collaborative software development. As a demonstration, actual data is used from several previous algorithma projects.
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Villa, Victor Fidel. "EVALUATION OF DESIGN TOOLS FOR THE MICRO-RAM AIR TURBINE." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1446.
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The development and evaluation of the design of a Micro-Ram Air Turbine (µRAT), a device being developed to provide power for an autonomous boundary layer measurement system, has been undertaken. The design tools consist of a rotor model and a generator model. The primary focus was on developing and evaluating the generator model for the prediction of generator brake power and output electrical power with and without rectification as a function of shaft speed and electrical load, with only basic manufacturer specifications given as inputs. A series of motored generator evaluation test were conducted at speeds ranging from 9,000 to 25,000 rpm for loads varying between 1 and 3.02 Ohms with output power of up to 80 Watts. Results demonstrated that predicted generated power was at or below 3% error when compared to measured results with about 1% uncertainty. A rotor model was also developed using basic blade element theory. This model neglected induced flow effects and was therefore expected to over predict rotor torque and power. A second rotor model that includes induced flow effects, the open source program X-Rotor, was also used to predict rotor power and for comparison to the blade element rotor model results. Both rotor models were evaluated through wind tunnel validation tests conducted on a turbine generator with two different 3.25 in diameter rotors, rotor-1 (untwisted blades) and rotor-2 (twisted blades). Wind tunnel validation test airspeeds varied between 71-110 mph with electrical loads ranging from 1-20 ohms. Results indicated power predictions to be 50-75% higher for the blade element model and 20-30% for X-Rotor results. The blade element rotor model was modified by applying the Prandtl tip-loss factor to approximately account for the induced flow effects; this addition brought predictions much closer to X-Rotor results. Based on the motor-driven generator test results, it is believed that most of the discrepancy in baseline rotor/generator validation test between predicted and observed power generated is due to inaccuracy in the rotor performance modelling with likely contributors to error being induced flow effects, crude section lift/drag modelling, and aero-elastic deformation. It is concluded that the proposed generator model is sufficient although direct torque measurements may be desired and further development of the µRAT design tools should focus on an improved rotor performance model.
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Baietto, M. "Development of a new non-invasive tool for the assessment of decays in the urban environment." Doctoral thesis, Università degli Studi di Milano, 2007. http://hdl.handle.net/2434/161509.
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The problem of tree stability in the urban environment is one of the main worries of our public administrations. The very bad conditions in which plants live in the cities force them to endure perennial stress, many various pests, and damage from accidental injuries. Currently, the stability methodology assessment in the urban environment initially follows a visual analysis of individual trees pursued by an evaluation of the internal state by using different instruments that are feasible but often invasive, expensive, or cannot be used in the urban environment. Moreover, many of these instruments do not provide an adequate evaluation if the decay occurs in the root system. We have evaluated the possibility of integrating the tools currently used with an innovative one developed in other fields for different applications: the electronic nose and its capability to detect volatiles emitted by the wood decay fungi, the healthy trees and the diseased trees. Results showed the feasibility of using three different e-noses for detecting incipient decays in artificially inoculated wood. A previous objective was to evaluate the progress kinetics of decays in trees in order to develop provisional models and that are reliable and applicable. Our data confirm that A. mellea and G. lucidum have the fastest growth rates among common urban wood decay fungi but Thuja occidentalis L. seems resistant or at least tolerant to many wood decay fungi based on artificial inoculations. Platanus x acerifolia appeared to be the most susceptible species of all ornamental tree species tested.
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Matheron, Michael E., and Martin Porchas. "Evaluation of Fungicides as Potential Management Tools for Phytophthora Crown Rot on Pepper Plants." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/215030.
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Phytophthora blight of peppers (Capsicum annuum) is caused by the oomycete pathogen Phytophthora capsici. In Arizona, the root and crown rot phase of the disease initially can appear on plants early in the growing season in areas of the field where soil remains saturated with water after an irrigation or rainfall event. Disease severity can increase dramatically due to summer rains during July and August in the southeastern Arizona production area. The efficacy of the systemic fungicide mefenoxam (Ridomil Gold)) for control of Phytophthora blight on pepper has been documented; however, in many pepper production regions, populations of the pathogen insensitive to this fungicide have developed. Other chemistries, including dimethomorph (Acrobat) as well as some new fungicides in development, have activity on some species of Phytophthora and associated diseases on crops other than pepper. The objective of the following study was to evaluate additional chemistries for efficacy in suppressing development of root and crown rot on pepper plants grown in soil naturally infested with Phytophthora capsici. In the first trial, nontreated pepper plants were all dead after an average elapsed time of 5 days in soil infested with P. capsici. In the same trial, no plants died after 66 days when the soil was treated with Ranman (cyazofamid), V-10161 (fluopicolide), and Reason (fenamidone) + Previcur Flex (propamocarb). Additionally, only one out of five pepper plants died when treated with Omega (fluazinam), NOA-446510 (mandipropamid) and AgriFos (mono- and di-potassium salts of phosphorous acid). For all of these treatments, the duration of plant survival and fresh weight of plant shoots and roots did not differ significantly from plants grown in sterilized soil. Similar results were obtained in the second trial. The results from these trials suggest that several fungicides currently not registered for use on peppers may be effective components of a management program for Phytophthora root and crown rot. The data is promising; however, additional studies in field soil naturally infested with P. capsici are needed to confirm the preliminary findings of these initial experiments.
Books on the topic "RFT tool"
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European Parliament. Directorate-General for Research. Rational planning techniques (RPT): A tool to enhance energy. European Parliament, 1996.
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Institut, Wuppertal. Rational planning techniques (Rpt): A tool to enhance energy efficiency?. European Parliament. Directorate General for Reseach, 1996.
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Wilson, T. L. (Thomas L.), 1942-, Hüttemeister S. (Susanne) 1963-, and SpringerLink (Online service), eds. Tools of radio astronomy. 5th ed. Springer, 2009.
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Shea, John J. (John Joseph), ed. Reconstructing late Pleistocene human behavior in the Jordan Rift Valley: The middle paleolithic stone tool assemblage from Ar Rasf. Archaeopress, 2009.
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Scialpi, Angela, and Alessio Mengoni, eds. La PCR e le sue varianti. Firenze University Press, 2008. http://dx.doi.org/10.36253/978-88-6453-159-5.
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The book "La PCR e le sue varianti" is designed as a reference tool for those whose laboratory activities deal with methods based on nucleic acid amplification. The text provides the theoretical bases of the polymerase chain reaction (PCR) and its variants (e.g. RT-PCR, quantitative PCR, isothermic PCR) in a rapid and concise manner and describes the principal applications used for genetic identification and the study of genetic polymorphism, in the form of a protocol that can be easily consulted by the users.
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Brinksmeier, Ekkard. Fabrication of Complex Optical Components: From Mold Design to Product. Springer Berlin Heidelberg, 2013.
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Schott, Christopher K. Critical Care Ultrasound (DRAFT). Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190612474.003.0026.
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Point of care ultrasonography (POCUS) is a tool that can be used at the bedside to aid in the diagnosis and treatment of critically ill patients. The ability to directly visualize physiology, pathology, and response to treatment can add valuable information in patient management particularly in time sensitive situations with acutely decompensated patients as may occur in the context of rapid response team (RRT) events. Although most of the data on POCUS to guide resuscitations has been published through emergency medicine (EM) and pre-hospital studies, the same approach can be easily adapted for in-hospital RRT events. This chapter reviews validated POCUS protocols for the assessment of hypotensive, hypoxic, or arresting patients and the ways it can be incorporated into in-hospital RRTs.
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Davies, J. Clarence. Comparing Environmental Risks: Tools for Setting Government Priorities (RFF Press). RFF Press, 1996.
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Claridge, Andrew, John Seebeck, and Randy Rose. Bettongs, Potoroos and the Musky Rat-kangaroo. CSIRO Publishing, 2007. http://dx.doi.org/10.1071/9780643095083.
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Rat-kangaroos have not coped well with the impact of European settlement in Australia. Of the 11 species present in 1788, two are extinct, two are either mostly or totally restricted to offshore islands and the range of all other species has been much reduced. Habitat alienation, altered fire regimes, grazing, predation by introduced carnivores, competition from rabbits and timber harvesting have variously taken their toll on these little-seen animals.
 The rat-kangaroo was one of the first Australian marsupials to be seen alive in Europe. Collected close to the settlement at Sydney Cove, a pair of them were exhibited in London in 1789. These animals were called by the local Aboriginal people 'Pot-o-roo', and by the European settlers, 'Kangooroo rat'. They were the Long-nosed Potoroo, Potorous tridactylus, the first of what we now call 'Rat-kangaroos' to be discovered.
 Bettongs, Potoroos and the Musky Rat-kangaroo provides an extraordinary glimpse into the secretive lives of these unusual marsupials. It also reveals little-known facts about the critical functional role these creatures play in maintaining the forest and woodland habitats in which they live.
 Winner of the 2008 Whitley Award for Natural History.
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Bilal, Zill-e.-Huma, Saira Banarus, and Iffat Siddiqui. Induction of Resistance in Garlic against Basal Rot: Tissue culture, a tool for genetic modification. VDM Verlag Dr. Müller, 2011.
Find full textBook chapters on the topic "RFT tool"
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Goldmann, Stefan, and Ralf Salomon. "RfM: A Radio Flashing Tool for Microcontrollers." In Intelligent Interactive Assistance and Mobile Multimedia Computing. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-10263-9_30.
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Antunes, Isabela Beleza, Andressa da Silva, Regiane Kawakami, and Monica Levy Andersen. "The Female Rat." In Rodent Model as Tools in Ethical Biomedical Research. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-11578-8_8.
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Laulederkind, Stanley J. F., G. Thomas Hayman, Shur-Jen Wang, et al. "Rat Genome Databases, Repositories, and Tools." In Methods in Molecular Biology. Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9581-3_3.
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Zavarrone, Emma, Maria Gabriella Grassia, Rocco Mazza, and Alessia Forciniti. "Emergency remote teaching: an explorative tool." In Proceedings e report. Firenze University Press, 2021. http://dx.doi.org/10.36253/978-88-5518-461-8.12.
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The worldwide rapid spread and severity of the infectious disease caused by Coronavirus forced the WHO to declare a global state of pandemic emergency during March 2020, by leading the governments around the world to adopt policies that created the widest rift of education systems in human history. Italy have temporarily closed each educational institution, by causing the disruption of tertiary education for 16.89% of the Italian learner’s population. To ensure the “pedagogic continuity”, universities adopted the transitioning from traditional face-to-face to online learning. This paradigm shift to fully remote teaching solutions represents the so-called emergency remote teaching (ERT) in contrast to the traditional teaching inspired by Bologna process principles such as teaching quality and student satisfaction. In a landscape of emerging difficulties connected to ERT contexts, the quality assurance of higher education recalled by the Bologna Process may be not appropriate. We propose an evaluation model for the quality and ERT success across two dimensions used as proxy variables: students’ engagement (SE) and success performance (SP). Within the faculties, we analysed the performance and hence the knowledge, skills and/or attitudes acquired by learners, within the students, the focus was the engagement as interest, motivation and involvement. Under this perspective our research question has an explorative nature: we are interested in detecting empirical evidence about the learning assessment and engagement in higher education with focus on students’ engagement and their success performance during ERT. The investigation carried out on Iulm University’s student population (N=775). We integrated textual data related to the students evaluation of ERT and their career data such as credits, marks before and post disease. The results show the relations between the two dimensions taken into account, with a multidimensional approach we created a factorial plan useful to create an agile tool of analysis in the ERT context.
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Al-Thani, Noora J., and Zubair Ahmad. "Driving Project-Based Learning and Problem-Based Learning Through Research in Middle Schools." In SpringerBriefs in Education. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87544-1_3.
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Abstract Chapter 3, titled “Driving Project-based Learning and Problem-based Learning through Research in Middle Schools,” explores the integration of Research Cognitive Theory (RCT) within Project-based Learning (PBL) and Problem-based Learning (PBL) frameworks in middle school settings. This chapter provides an in-depth analysis of how RCT can enhance these pedagogical approaches to foster critical skills and attitudes among students. The chapter begins by discussing the theoretical foundations and practical applications of PBL and PBL, detailing how these methods support inquiry, collaboration, and real-world problem-solving. It presents case studies and practical examples to demonstrate how RCT can be effectively integrated into middle school curricula, thereby engaging students in meaningful, research-driven projects that promote critical thinking, creativity, and self-directed learning. Furthermore, the chapter highlights the crucial role of educational technology in advancing these pedagogical strategies. It reviews how technology can facilitate innovative, hands-on research experiences, support collaborative efforts, and provide students with tools to conduct and present research effectively. The chapter also addresses the challenges and opportunities associated with integrating technology into PBL and PBL frameworks, offering solutions to enhance implementation. Overall, Chapter 3 emphasizes the transformative potential of combining RCT with PBL and PBL in middle school education. It provides valuable insights into how these approaches can drive student learning, foster essential skills, and prepare students for future academic and professional challenges.
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Wrzuszczak-Noga, Jolanta. "Applying Basket Analysis and RFM Tool to Analyze of Customer Logs." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99981-4_24.
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Jitchum, Varangkana, Hamilton Kakwere, Vincent Ladmiral, and Sébastien Perrier. "RAFT Polymerization, a Versatile Tool for the Production of Functional Soft Nanoparticles." In ACS Symposium Series. American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1024.ch018.
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Siauw, Meiliana, Brian S. Hawkett, and Sébastien Perrier. "RAFT Polymerization: A Powerful Tool for the Synthesis and Study of Oligomers." In ACS Symposium Series. American Chemical Society, 2012. http://dx.doi.org/10.1021/bk-2012-1101.ch002.
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Nieuwland, Joachim, and Franck L. B. Meijboom. "“Eek! A Rat!”." In The International Library of Environmental, Agricultural and Food Ethics. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63523-7_17.
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AbstractRats are often despised. In what way does such aversion affect moral deliberation, and if so, how should we accommodate any distorting effects on our normative judgements? These questions are explored in this chapter with regard to recent proposals in (1) the ethics of pest management and (2) animal political theory. While ethical frameworks and tools used in the context of animal research can improve moral deliberation with regard to pest management, we argue based on psychological factors regarding the perception of rats that before implementing these methods in either animal research or pest management, one needs to ascertain that rats are owed genuine moral consideration. With regard to animal political theory, we identify three issues: truth-aptness, perception, and moral motivation. To complement as well as address some of the issues found in both animal research ethics and animal political theory, we explore compassion. Starting from compassion, we develop a pragmatist and interspecies understanding of morality, including a shift from an anthropocentric to a multispecies epistemology, and a distributed rather than an individual notion of moral agency. We need to engage with the experience of others, including rats and those who perceive these animals as pests, as well as pay attention to the specific way individual agents are embedded in particular socio-ecological settings so as to promote compassionate action.
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Li, Huoming, and Hao Li. "Animal Models of Tuberculosis." In Vaccines for Neglected Pathogens: Strategies, Achievements and Challenges. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24355-4_7.
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AbstractTuberculosis (TB) is an important zoonotic disease caused by infection with Mycobacterium tuberculosis (Mtb) complex and has a significant impact on public health. Animal models are suitable tools to mimic the clinical symptoms observed in human TB and provide an opportunity to understand immune responses to infection and the pathophysiology and pathogenesis of TB. In this chapter, we summarize the animal models that are used in Mtb research, including common models such as the mouse, rat, guinea pig, non-human primates, rabbit, cattle and zebrafish, as well as discuss some newly established animal models.
Conference papers on the topic "RFT tool"
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Edgemon, Glenn L., Graham E. C. Bell, and Gary Baker. "Corrosion of Fire Protection System Lines at the Nevada Test Site's Device Assembly Facility." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10217.
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Abstract The Device Assembly Facility (DAF) is a collection of 30 individual steel-reinforced buildings connected by a rectangular racetrack corridor built in the Nevada desert in the mid-1980s. The DAF fire suppression system includes 29 carbon steel lead-in lines that run underground from the header loop line to a variety of risers inside the DAF. The lead-in lines are fabricated from 4-in. or 6-in. diameter carbon steel pipes lined and coated with coal tar enamel (CTE). Particles and flakes of the CTE lining have been appearing in water used to flush the fire suppression piping since the installation of the system. Discussions with DAF personnel indicate that the carbon steel lines were not flange-fitted together (as designed) during installation at the DAF; instead, the sticks of pipe used to form the lead-in lines were welded together. The welding caused substantial damage to the interior CTE lining. Screens have since been installed in the lead-in lines to prevent CTE particles and flakes from clogging sprinkler heads should their use be required in an emergency. An integrity assessment was recently performed to determine the nature and extent of corrosion damage and to determine the mechanism responsible for the delamination of the CTE lining. Borescopic video and Remote Field Tool (RFT) inspections confirmed that the CTE lining was substantially damaged by welding operations during construction of the lead-in line system. Several forms of corrosion are active or likely active in the system including general corrosion, MIC, pitting, crevice corrosion, and galvanic cell corrosion. No sessile samples were collected, but tubercle-like growths were observed and water testing confirmed that MIC-inducing bacteria are present in all the lead-in lines. If MIC is indeed active, MIC presents a significant threat to line integrity at the welded joints. Concentration cell and crevice corrosion were not directly observed, but are likely at the damaged joints given the geometry of the damaged area and the ongoing delamination of the CTE lining material. Away from the welded joints, blistering of the lining due to pitting corrosion presents the most significant threat to line integrity. Galvanic corrosion at the uninsulated joints between each steel line and the brass PIV is an additional significant threat to line integrity. Likewise, the galvanic cell created by electrical contact between the concrete-encased steel in the building walls and the DAF lead-in lines is accelerating the corrosion of the DAF lead in lines. Insulating kits should have been specified and installed to eliminate the galvanic cell between materials, but appear to be non-existent. Details of the findings and possible paths for remediating the damage are discussed herein.
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Andrews, Adrian F. "Polysiloxane Topcoats - a Step Too Far?" In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05007.
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Abstract Polysiloxanes technology introduced to the Protective Coatings market in the mid to late 1990’s is a relatively new innovation, providing highly weatherable, low VOC, isocyanate-free topcoats. There are a number of commercially available polysiloxane finish products formulated, using different organic modifications necessary, to provide the required performance product attributes. New products to date are necessarily introduced to the market relatively quickly (5-10 years), based on a raft of laboratory and external test protocols, which attempt to correlate these results with real time field performance. The polysiloxane products in the market today have a relatively short “track record”, and not all of them have performed adequately in the field. This paper will consider whether the products and technology available today are “fit for purpose” and address the question “is the bad press in some quarters concerning this product technology justified?”
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Padrón, José D., Michael Behrisch, and Carlos T. Calafate. "SUMO2GRAL: A tool to simplify the workflow of estimating pollutant concentrations in urban areas." In 2024 28th International Symposium on Distributed Simulation and Real Time Applications (DS-RT). IEEE, 2024. https://doi.org/10.1109/ds-rt62209.2024.00016.
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Walker, J. L. B. "RFT impedance matching toolbox." In IEE Colloquium Effective Microwave CAD Tools. IEE, 1999. http://dx.doi.org/10.1049/ic:19990381.
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Elwan, Mahmoud, Meher Surendra, Shawket Ghedan, et al. "Artificial Intelligence-Based, Automated Rapid Reservoir Assurance and Reservoir Health Diagnostics in a Complex Offshore Mature Field." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206077-ms.
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Abstract The QQ Field in the Gulf of Suez is a mature, geologically complex with multiple stacked, faulted reservoirs, with commingled production between different reservoirs. This paper illustrates the power of an automated tool to perform systematic, rapid, and detailed assessment of the reservoir performance, identify the key recovery obstacles and prepare remedial plans to enable the reservoir to produce to its full potential. The well and reservoir data were processed to compute a series of metrics and key performance indicators at various levels (well, layer, reservoir, well groups, etc.). The tool has several automated modules to facilitate rapid, metric-driven reservoir assurance and management. These modules include: (i) well production/injection allocation, (ii) wells decline curve analysis including event-detection, (iii) pressure and voidage analysis, and (iv) Contact analysis. Using performance analytics, the study quickly identified ways to improve the health of the reservoir and maximize its value. The QQ Field predominantly produces from two formations: Nubia and Nezzazat. Furthermore, there are multiple sub-layers in each formation. Reliable flow unit allocation is critical to gauge contribution of each layer, identify the undrained areas of the reservoir, and locate future development opportunities. The flow unit allocation module incorporates all available data such as PLT/ILT data, completion history, permeability of each flow unit at well level, relative pressures, and water influx model. Based on the allocated production, the current recovery factors in Nubia and Nezzazat are approximately 60% and 20% respectively. Analysis of RFT data reveals good vertical communication across Nubia. However, in some areas there is clear pressure discontinuity across layers. The reservoir pressure has dropped below the bubble point in both formations. As a result, water injection was initiated. The pressure in all parts of Nubia was restored above bubble point. Aquifer influx is sufficient to support the current withdrawal rates and further water injection is unnecessary. However, Nezzazat has a significantly higher reservoir complexity and therefore, shows a large variation in pressure behavior. It needs water injection to maintain the reservoir pressure above the bubble point in all parts of the reservoir. Based on the flow-unit allocation, the voidage replacement ratio (VRR) was calculated for each area and each layer. Even though the overall VRR in the waterflooded areas is above one, the distribution of the injected water is uneven. Redistributing injected water and ensuring that all the areas and all the layers are adequately supported will help to maximize recovery. The prolonged dip in oil price demands extreme efficiency. Sound reservoir management must not require unreasonable time or manpower. The rapid, automated analysis enables quick identification of the key areas for improvement in reservoir management practices and maximize the value of the asset.
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Mehrabadi, Adel, Gabriele Urbani, Simona Renna, Lucia Rossi, Italo Luciani, and Konstantinos Mastrogeorgiou. "Integrated Production Data Analysis and Water Injection Optimization in a Giant Carbonate Field." In SPE 2020 Symposium Compilation. SPE, 2021. http://dx.doi.org/10.2118/203782-ms.
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Abstract In case of giant brown fields, a proper water injection management can result in a very complex process, due to the quality and quantity of data to be analysed. Main issue is the understanding of the injected water preferential paths, especially in carbonate environment characterized by strong vertical and areal heterogeneities (karst). A structured workflow is presented to analyze and integrate a massive data set, in order to understand and optimize the water injection scheme. An extensive Production Data Analysis (PDA) has been performed, based on the integration of available geological data (including NMR and Cased Hole Logs), production (allocated rates, Well Tests, PLT), pressure (SBHP, RFT, MDT, ESP) and salinity data. The applied workflow led to build a Fluid Path Conceptual Model (FPCM), an easy but powerful tool to visualize the complex dynamic connections between injectors-producers and aquifer influence areas. Several diagnostic plots were performed to support and validate the main outcomes. On this basis, proper actions were implemented to optimize the current water injection scheme. The workflow was applied on a carbonate giant brown field characterized by three different reservoir members, hydraulically communicating at original conditions, characterized by high vertical heterogeneity and permeability contrast. Moreover, dissolution phenomena, localized in the uppermost reservoir section, led to important permeability enhancement through a wide network of connected vugs, acting as water preferential communication pathways. The geological analysis played a key role to investigate the reservoir water flooding mechanism in dynamic conditions. The water rising mechanism was identified to be driven by the high permeability contrast, hence characterized by lateral independent movements in the different reservoir members. The integrated analysis identified room for optimization of the current water injection strategy. In particular, key factor was the analysis and optimization at block scale, intended as areal and vertical sub-units, as identified by the PDA and visualized through the FPCM. Actions were suggested, including injection rates optimization and the definition of new injections points. A detailed surveillance plan was finally implemented to monitor the effects of the proposed actions on the field performances, proving the robustness of the methodology. Eni workflow for water injection analysis and optimization was previously successfully tested only in sandstone reservoirs. This paper shows the robustness of the methodology also in carbonate environment, where water encroachment is strongly driven by karst network. The result is a clear understanding of the main dynamics in the reservoir, which allows to better tune any action aimed to optimize water injection and increase the value of mature assets.
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Sallam, Abdalla M., Ahmed Selim, Ali Ashraf, et al. "Innovative Techniques for Efficient Wireline String Retrieval from Oil and Gas Well Rat Holes." In Mediterranean Offshore Conference. SPE, 2024. http://dx.doi.org/10.2118/223181-ms.
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Abstract In the realm of oil and gas extraction, various well intervention techniques such as slickline, braided line, e-line, and coiled tubing are extensively utilized to maintain and optimize well productivity. Despite their widespread application, these techniques can encounter significant operational challenges. One such challenge is the accidental cutting of the wire at the top of the string, resulting in the string dropping into the rat hole. The difficulty of this situation is exacerbated when the outer diameter (OD) of the dropped string is smaller than the minimum restriction in the completion assembly. The rat hole, an extension of the wellbore below the completion tubing, is typically supported by casing sizes of 7 inches and 5 inches. Retrieving a lost string from a 7-inch casing presents a substantial challenge, particularly when using conventional pulling tools. These tools must have an OD not exceeding 2.55 inches to navigate through completion nipples, yet they often lack the capability to securely engage and retrieve objects from larger casing diameters. This paper introduces an innovative solution: a newly designed pulling tool equipped with an expandable skirt. This tool is engineered to overcome the aforementioned limitations by dynamically adjusting its OD, thereby facilitating the efficient retrieval of lost strings from the rat hole. The expandable skirt mechanism allows the tool to engage objects securely, ensuring successful retrieval operations. The development and deployment of this advanced tool not only enhance the efficiency of well intervention operations but also significantly contribute to maintaining well integrity. By addressing the critical issue of retrieving lost strings in challenging wellbore conditions, this tool extends the operational life of wells and reduces non-productive time. The paper provides a comprehensive overview of the design, functionality, and field application of this tool, demonstrating its potential to revolutionize well intervention practices in the oil and gas industry.
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Wagoner Johnson, A. J., M. Poellmann, B. L. McFarlin, and E. K. Chien. "Tensile Properties and Collagen Organization of the Rat Cervix." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80462.
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Preterm birth is the leading cause of newborn death. Many premature survivors have serious and lifelong complications like cerebral palsy, learning and developmental disabilities, and hearing and vision impairment [1]. An accurate, predictive tool for preterm birth risk assessment does not exist. This research works towards developing tools based on mechanical measures of the cervix to assess risk for preterm birth.
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Singh, N. S. S., N. H. Hamid, and V. S. Asirvadam. "Reliability automation tool (RAT) for fault tolerance computation." In INTERNATIONAL CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCES 2012: (ICFAS2012). AIP, 2012. http://dx.doi.org/10.1063/1.4757434.
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Ismail, A. F., H. A. Mohd Ramli, N. I. Sidek, and W. Hashim. "Development of Radio Frequency radiation (RFR) prediction tool." In 2012 18th Asia-Pacific Conference on Communications (APCC). IEEE, 2012. http://dx.doi.org/10.1109/apcc.2012.6388131.
Full textReports on the topic "RFT tool"
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George, Bennie. Rat Pituitary Frozen Sections: A Vital Tool in Endocrine Research. ResearchHub Technologies, Inc., 2025. https://doi.org/10.55277/researchhub.tkl4uawe.
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Wilkening, D. E., and J. P. Loyall. Avionics Software Reengineering Technology (ASRET) Project Reengineering Tool (RET) User's Manual. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada305664.
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Wilkening, D. E. Avionics Software Reengineering Technology (ASRET) Project. Volume 2. Reengineering Tool (RET) Diagrams. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada305705.
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Skow, Jason, and Smitha Koduru. PR-244-163728-R01 In-Line Inspection Crack Tool Performance Evaluation Phase II. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011531.
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After recent high profile pipeline incidents in the United States, the National Transportation Safety Board (NTSB) issued recommendations to review ILI technologies with respect to tool tolerance, probability of detection and probability of identi?cation, and to provide a model with detailed procedures for evaluating the e?ect of interacting corrosion and crack threats. Phase I of the PRCI project NDE-4E was initiated in 2013 to address the ?rst of these recommendations to the extent possible by mining existing historical operator data. The main goal of the project was to create a database of crack ILI and excavation information collected from operatorsandtouseittocharacterizetheperformanceofavailableILItechnologies. The database was created and populated in Phase I of the NDE 4-E project, completed in July of 2015. The purpose of Phase II is to collect additional data and update the database and statistical analysis with an emphasis on collecting crack features measured by Electromagnetic Acoustic Transducer(EMAT)ILI tools and interacting crack in corrosion features measured by ultrasonic (UT) ILI tools
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Hu, Ningning, and Peter Steenkiste. RPT: A Low Overhead Single-End Probing Tool for Detecting Network Congestion Positions. Defense Technical Information Center, 2003. http://dx.doi.org/10.21236/ada461141.
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Getsinger, Kurt, Christopher Mudge, Bradley Sartain, Benjamin Sperry, Damian Walter, and Michael Durham. The use of rhodamine water tracer (RWT) dye to improve submersed herbicide applications. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48412.
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The inert fluorescent dye rhodamine water tracer (RWT) has been widely used in freshwater aquatic systems for many years to quantify bulk water exchange patterns and as a tracer for submersed herbicide movement. The dye is well-suited for tracer work due to its high solubility and detectability in water (<0.01 μg/L). Federal guidelines limit the aqueous concentration 0f RWT to <10 μg/L at drinking water intakes. The dye has proven to be harmless to aquatic organisms and humans in low concentrations and is relatively inexpensive. Since 1991, RWT has been used by Engineer Re-search and Development Center (ERDC) researchers to simulate aqueous herbicide applications in large, hydrodynamic systems in over 12 states. Such simulations have improved the effectiveness of herbicide treatments by linking in situ water exchange processes with appropriate herbicide selection and application rates. Understanding these parameters can be critical for mitigating herbicide exposure in environmentally sensitive settings and around potable water and irrigation intakes. A data-based estimate of water exchange patterns usually results in successful submersed herbicide applications—both with target-plant efficacy and limited injury to nontarget vegetation. Using RWT dye to simulate submersed herbicide applications is an important predictive and real-time tool in both experimental and operational settings.
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Messina, Francesca, Ioannis Georgiou, Melissa Baustian, et al. Real-time forecasting model development work plan. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47599.
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The objective of the Lowermost Mississippi River Management Program is to move the nation toward more holistic management of the lower reaches of the Mississippi River through the development and use of a science-based decision-making framework. There has been substantial investment in the last decade to develop multidimensional numerical models to evaluate the Lowermost Mississippi River (LMMR) hydrodynamics, sediment transport, and salinity dynamics. The focus of this work plan is to leverage the existing scientific knowledge and models to improve holistic management of the LMMR. Specifically, this work plan proposes the development of a real-time forecasting (RTF) system for water, sediment, and selected nutrients in the LMMR. The RTF system will help inform and guide the decision-making process for operating flood-control and sediment-diversion structures. This work plan describes the primary components of the RTF system and their interactions. The work plan includes descriptions of the existing tools and numerical models that could be leveraged to develop this system together with a brief inventory of existing real-time data that could be used to validate the RTF system. A description of the tasks that would be required to develop and set up the RTF system is included together with an associated timeline.
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Amela, R., R. Badia, S. Böhm, R. Tosi, C. Soriano, and R. Rossi. D4.2 Profiling report of the partner’s tools, complete with performance suggestions. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.023.
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This deliverable focuses on the proling activities developed in the project with the partner's applications. To perform this proling activities, a couple of benchmarks were dened in collaboration with WP5. The rst benchmark is an embarrassingly parallel benchmark that performs a read and then multiple writes of the same object, with the objective of stressing the memory and storage systems and evaluate the overhead when these reads and writes are performed in parallel. A second benchmark is dened based on the Continuation Multi Level Monte Carlo (C-MLMC) algorithm. While this algorithm is normally executed using multiple levels, for the proling and performance analysis objectives, the execution of a single level was enough since the forthcoming levels have similar performance characteristics. Additionally, while the simulation tasks can be executed as parallel (multi-threaded tasks), in the benchmark, single threaded tasks were executed to increase the number of simulations to be scheduled and stress the scheduling engines. A set of experiments based on these two benchmarks have been executed in the MareNostrum 4 supercomputer and using PyCOMPSs as underlying programming model and dynamic scheduler of the tasks involved in the executions. While the rst benchmark was executed several times in a single iteration, the second benchmark was executed in an iterative manner, with cycles of 1) Execution and trace generation; 2) Performance analysis; 3) Improvements. This had enabled to perform several improvements in the benchmark and in the scheduler of PyCOMPSs. The initial iterations focused on the C-MLMC structure itself, performing re-factors of the code to remove ne grain and sequential tasks and merging them in larger granularity tasks. The next iterations focused on improving the PyCOMPSs scheduler, removing existent bottlenecks and increasing its performance by making the scheduler a multithreaded engine. While the results can still be improved, we are satised with the results since the granularity of the simulations run in this evaluation step are much ner than the one that will be used for the real scenarios. The deliverable nishes with some recommendations that should be followed along the project in order to obtain good performance in the execution of the project codes.
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Cantor, Amy G., Rebecca M. Jungbauer, Andrea C. Skelly, et al. Respectful Maternity Care: Dissemination and Implementation of Perinatal Safety Culture To Improve Equitable Maternal Healthcare Delivery and Outcomes. Agency for Healthcare Research and Quality (AHRQ), 2024. http://dx.doi.org/10.23970/ahrqepccer269.
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Objective. To summarize current research defining and measuring respectful maternity care (RMC) and evaluate the effectiveness of RMC and implementation strategies to improve health outcomes, particularly for populations at risk for health disparities. Data sources. Ovid MEDLINE®, Embase®, and Cochrane CENTRAL from inception to November 2022 and SocINDEX to July 2023; manual review of reference lists and responses to a Federal Register Notice. Review methods. Dual review of eligible abstracts and full-text articles using predefined criteria. Data abstraction and quality assessment dual reviewed using established methods. Systematic evaluation of psychometric studies of RMC tools using adapted criteria. Meta-analysis not conducted due to heterogeneity of studies and limited data. Results. Searches identified 4,043 unique records. Thirty-seven studies were included across all questions, including the Contextual Question (CQ). Twenty-four validation studies (3 observational studies, 21 cross-sectional studies) evaluated 12 tools for measuring RMC. One randomized controlled trial (RCT) evaluated RMC effectiveness. There were no effectiveness trials from settings relevant to clinical practice in the United States and no studies evaluating effectiveness of RMC implementation. For the CQ, 12 studies defined 12 RMC frameworks. Two types of frameworks defined RMC: (1) Disrespect and Abuse (D&A) and (2) Rights-Based. Components of D&A frameworks served as indicators for recognizing mistreatment during childbirth, while Rights-Based frameworks incorporated aspects of reproductive justice, human rights, and anti-racism. Overlapping themes from RMC frameworks included: freedom from abuse, consent, privacy, dignity, communication, safety, and justice. Tools that measured RMC performed well based on psychometric measures, but no single tool stood out as the best measure of RMC. The intrapartum version of the Mother’s Autonomy in Decision-Making (MADM), Mothers On Respect index (MORi), and the Childbirth Options, Information, and Person-Centered Explanation (CHOICES) index for measuring RMC demonstrated good overall validity based on analysis of psychometric properties and were applicable to U.S. populations. The Revised Childbirth Experience Questionnaire (CEQ-2) demonstrated good overall validity for measuring childbirth experiences and included RMC components. One fair-quality RCT from Iran demonstrated lower rates of postpartum depression at 6-8 weeks for those who received RMC compared with controls (20% [11/55] vs. 50% [27/54], p=0.001), measured by the Edinburgh Postpartum Depression Scale. No studies evaluated any other health outcomes or measured the effectiveness of RMC implementation strategies. Conclusions. RMC frameworks with overlapping components, themes, and definitions were well described in the literature, but consensus around one operational definition is needed. Validated tools to measure RMC performed well based on psychometric measures but have been subject to limited evaluation. A reliable metric informed by a standard definition could lead to further evaluation and implementation in U.S. settings. Evidence is currently lacking on the effectiveness of strategies to implement RMC to improve any maternal or infant health outcome.
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Smithe, D. N. Continued development of modeling tools and theory for rf heating. Final report. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/677191.
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