Relevant bibliographies by topics / Cycling RTD

Contents

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

Academic literature on the topic 'Cycling RTD'

Author: Grafiati
Published: 21 January 2025

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Journal articles on the topic "Cycling RTD"

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Jackson, T. R., R. Haggerty, and S. V. Apte. "A fluid-mechanics-based classification scheme for surface transient storage in riverine environments: quantitatively separating surface from hyporheic transient storage." Hydrology and Earth System Sciences Discussions 10, no. 4 (April 4, 2013): 4133–206. http://dx.doi.org/10.5194/hessd-10-4133-2013.

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Abstract. Surface transient storage (STS) and hyporheic transient storage (HTS) have functional significance in stream ecology and hydrology. Currently, tracer techniques couple STS and HTS effects on stream nutrient cycling; however, STS resides in localized areas of the surface stream and HTS resides in the hyporheic zone. These contrasting environments result in different storage and exchange mechanisms with the surface stream, which can yield contrasting results when comparing transient storage effects among morphologically diverse streams. We propose a fluid mechanics approach to quantitatively separate STS from HTS that involves classifying and studying different types of STS. As a starting point, a classification scheme is needed. This paper introduces a classification scheme that categorizes different STS in riverine systems based on their flow structure. Eight distinct STS types are identified and some are subcategorized based on characteristic mean flow structure: (1) lateral cavities (emerged and submerged); (2) protruding in-channel flow obstructions (backward- and forward-facing step); (3) isolated in-channel flow obstructions (emerged and submerged); (4) cascades and riffles; (5) aquatic vegetation (emerged and submerged); (6) pools (vertically submerged cavity, closed cavity, and recirculating reservoir); (7) meander bends; and (8) confluence of streams. The long-term goal is to use the classification scheme presented to develop predictive mean residence times for different STS using field-measureable hydromorphic parameters and obtain a theoretical STS residence time distribution (RTD). The STS RTD can then be deconvolved from the transient storage RTD (measured from a tracer test) to obtain an estimate of HTS.
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Zhao, Jiahao, Xiaodan Sun, Dong Wang, Meiquan Wang, Junjie Li, Jun Wang, and Qingwei Guan. "Responses of Fine Root Morphological and Chemical Traits among Branch Orders to Forest Thinning in Pinus massoniana Plantations." Forests 15, no. 3 (March 7, 2024): 495. http://dx.doi.org/10.3390/f15030495.

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Fine roots play an essential role in biogeochemical cycling in forest ecosystems; however, little is known about the response of fine root morphology and chemistry in different root orders to forest management activities such as forest thinning. We investigated the fine root morphological and chemical traits in different root orders of Pinus massoniana under different thinning intensities, namely no thinning, low-intensity thinning (LIT), middle-intensity thinning (MIT), and high-intensity thinning (HIT) (0%, 25%, 45%, and 65% of individual trees eliminated, respectively). We found that forest thinning increased the root diameter (RD) of absorptive roots and decreased that of transport roots, while the trend for the specific root length (SRL) was the opposite. LIT and MIT could increase specific surface area (SSA), especially the SSA of absorptive roots in the MIT treatment. The root tissue density (RTD) of all root sequences in the LIT treatment decreased but increased in the HIT treatment. For the fine root chemical traits, thinning increased the root carbon concentration (RCC) of absorptive roots. The root nitrogen concentration (RNC) and root phosphorus concentration (RPC) of first- to fourth-order roots increased in the LIT and MIT treatments after thinning. Meanwhile, thinning increased root lignin, cellulose, and non-structural carbohydrate (NSC) concentrations. Soil temperature, nitrate, and microbial biomass carbon were factors affecting variations in fine root morphology and chemistry. Forest thinning was likely to shift the absorptive roots’ foraging strategy into a resource-conserving one. Thinning increased fine root chemical traits in most root orders. These findings contributed to our ability to predict how belowground ecological processes are mediated by fine roots under forest management activities.
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Wang, Wenqiang, Wenxiao Wang, Shuang Yu, Hongmei Zhang, Junlong Yang, and Xiaowei Li. "Structural Characteristics and Driving Factors of Rhizosphere Microbial Communities in the Rhizosphere of Six Stipa Species Across the Ningxia Steppe." Sustainability 16, no. 23 (November 24, 2024): 10273. http://dx.doi.org/10.3390/su162310273.

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The relation and interaction of rhizosphere microbial communities with local environmental factors and root traits is currently a vibrant research hotspot. Yet little is known about how the morphological and functional properties of roots in steppe plants affect microbial community structure. Hence, this study investigated the rhizosphere soil of six Stipa species across the Ningxia steppe in China to examine how the composition of their microbial communities responds to both root traits as well as surrounding environmental factors. Our results reveal significant differences (p < 0.001) in the composition of rhizosphere microbial communities among different Stipa species. The dominant bacterial and fungal phyla are Proteobacteria and Ascomycota, respectively; further, Mortierellomycota plays a key role in the fungal community and is closely associated with other fungal taxa. According to the functional gene predictions for bacteria and fungi, the rhizosphere microbes associated with Stipa species are mainly related to organic matter metabolism and nitrogen cycling. We find that soil physicochemical properties (SOC, TN, TP, AP, SWC, FL, SL) and root traits (RTD, Rtn) are pivotal factors which directly influence the structure of microbial communities dwelling in the rhizosphere of Stipa species. The dominant phyla of fungi and bacteria can respond to those properties in two contrasting ways. One group, consisting of bacteria such as Acidobacteria and fungi like Mortierellomycota, has a relative abundance that is positively correlated with soil nutrients (SOC, TN, AN, TP), whereas the second group, which includes bacteria such as Bacteroidetes and fungi like Ascomycota, is characterized by a negative correlation. More importantly, our results show that root traits significantly impact (p < 0.001) fungal diversity, whereby the morphological and functional properties indirectly affect the composition of bacterial and fungal communities by modulating soil properties. Altogether, the findings suggest that the morphological and functional properties of Stipa roots play a prominent role in shaping the community structure of rhizosphere microbes in steppe, providing a theoretical basis for exploring changes in these communities across space and time, as well as offering insights for grassland conservation and sustainable management.
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Yang, Chao-Hsun, Wan-Ting Kuo, Yun-Ting Chuang, Cheng-Yu Chen, and Chih-Chien Lin. "Cyclin B1 Destruction Box-Mediated Protein Instability: The Enhanced Sensitivity of Fluorescent-Protein-Based Reporter Gene System." BioMed Research International 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/732307.

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The periodic expression and destruction of several cyclins are the most important steps for the exact regulation of cell cycle. Cyclins are degraded by the ubiquitin-proteasome system during cell cycle. Besides, a short sequence near the N-terminal of cyclin B called the destruction box (D-box; CDB) is also required. Fluorescent-protein-based reporter gene system is insensitive to analysis because of the overly stable fluorescent proteins. Therefore, in this study, we use human CDB fused with both enhanced green fluorescent protein (EGFP) at C-terminus and red fluorescent protein (RFP, DsRed) at N-terminus in the transfected human melanoma cells to examine the effects of CDB on different fluorescent proteins. Our results indicated that CDB-fused fluorescent protein can be used to examine the slight gene regulations in the reporter gene system and have the potential to be the system for screening of functional compounds in the future.
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Ribeiro, Jéssica Araújo Heringer, Lígia Haira Duarte de Almeida, Thaís Gonzaga de Souza, Pamella Leandra Silva Lima, Sara de Sousa Cardoso, Paulo Henrique Pereira de Souza, and Fernando da Costa Brito Lacerda. "Ecosystem importance of roots: A literature review." Research, Society and Development 13, no. 3 (March 4, 2024): e0313345177. http://dx.doi.org/10.33448/rsd-v13i3.45177.

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Fine roots are all those with a diameter ≤2 mm. These roots are responsible for a significant portion of the primary productivity of terrestrial ecosystems, being important for providing resources to the soil microbial community and for influencing the cycling of carbon and nutrients. Despite their recognized importance, fine roots are commonly neglected in plant biomass studies. Root biomass studies are generally limited throughout the world, mainly due to the methodological complexity involved in the analytical processes. The objective of this work was to carry out a review of studies on the topic of roots, addressing the development of technologies in the analytical process and the importance of this dynamic biomass component in ecosystem processes related to carbon cycling and soil nutrients. We emphasize here the importance and need for new scientific research that seeks to develop methods of analysis, as well as to estimate the underground primary productivity, especially that of fine roots, so that the processes involved in the cycling of carbon and nutrients are better elucidated.
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Araújo, Isaac Jordão de Souza, Maurício Matté Zanini, Maurício Bottene Guarda, Bruna Marin Fronza, Simonides Consani, Isabela Pinheiro Cavalcanti Lima, and Américo Bortolazzo Correr. "Diatomite filler for resin composites application – A new approach for materials improvement." Research, Society and Development 11, no. 16 (December 7, 2022): e268111637738. http://dx.doi.org/10.33448/rsd-v11i16.37738.

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The aim of this study was to evaluate physical-mechanical properties, degree of conversion, and chemical stability of a nanohybrid composite containing diatomite as filler. Degree of conversion (DC%) of diatomite-containing composite (Zirconfill®) was performed using FTIR immediately, and 1-, and 7-days post-curing. SEM was conducted to evaluate the surface of the resin after curing and measure particles size. Also, elemental characterization was performed to verify the major components of the composite through EDS. Mechanical characterization using 3-point bending test was performed prior and after thermo-cycling (10000 cycles) (n=10). Knoop microhardness (KHN) was used to characterize mechanical stability after chemical solutions aggression (water, juice, coffee, coke) up to 28 days (n=10/solution). After data normality evaluation using Shapiro-Wilk, One-way ANOVA and Tukey post hoc were conducted to verify differences between groups for DC% and mechanical properties. Split-plot ANOVA was used to compare groups for microhardness characterization (α=0.05). Immediate DC was 60% and significantly increased up to 80% at 7 days (p<0.05). Flexural strength of the diatomite-containing composite was 136.2 (23.7) MPa and significantly decreased to 75.1 (10.2) as a result of thermo-cycling. The flexural modulus was not significantly affected by the thermo-cycling (p>0.05). All the dietary solutions affected the KHN of the composite up to 21 days. For 28 days, the KHN evidenced and stabilization regarding all the solutions. Diatomite-containing composites present good degree of conversion and relevant mechanical properties and demonstrate time-dependent stability against chemical degradation.
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Mentzel, Stijn V., Bjoern Krenn, Dennis Dreiskaemper, and Bernd Strauss. "The Impact of Wearing and Perceiving Colors on Hormonal, Physiological, and Psychological Parameters in Cycling." Journal of Sport & Exercise Psychology 43, no. 4 (August 1, 2021): 298–309. http://dx.doi.org/10.1123/jsep.2020-0150.

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This study examines the influence of wearing and perceiving colors in a cycling setting while also examining cortisol, heart rate, estimated maximum oxygen consumption, and subjective performance ratings. A total of 99 individuals completed the study, consisting of cortisol measurements, which compared baseline values to those after changing into a red or blue outfit, and a maximum cycling task performed wearing the same outfit while competing against a video opponent in red or blue. Each participant completed the protocol twice on separate days. Wearing a colored outfit showed no influence on cortisol levels. Regarding the cycling task, the participants wearing red had higher maximum heart rate values than when wearing blue. In addition, the results revealed increased maximum heart rate and maximum oxygen consumption values when perceiving an opponent in blue, especially when the participant also wore blue. No differences were found for the median heart rate or performance ratings.
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Siavoshian, S., HM Blottière, C. Cherbut, B. Kaeffer, and JP Galmiche. "Effect of butyrate on the expression of cyclin-dependent kinases and cyclin D by HT-29 epithelial cells." Reproduction Nutrition Development 37, no. 3 (1997): 341. http://dx.doi.org/10.1051/rnd:19970325.

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Kim, BR, SM Kang, E. de Josselin de Jong, HK Kwon, and BI Kim. "In Vitro Red Fluorescence as an Indicator of Caries Lesion Activity." Operative Dentistry 44, no. 4 (July 1, 2019): 405–13. http://dx.doi.org/10.2341/17-369-l.

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SUMMARY This in vitro study examined the utility of comparing red fluorescence between active and inactive caries lesions and investigated whether changes in red fluorescence and fluorescence loss are influenced by lesion activity following remineralization. Sixty-two noncavitated smooth surface caries lesions on extracted human teeth were classified into active or inactive lesions using the Nyvad system prior to a 12-day pH-cycling procedure. Quantitative light-induced fluorescence-digital images were used to measure fluorescence parameters before and after pH cycling. At baseline, the intensity (ΔR) and area (AΔR) of red fluorescence were 1.5- and 2.2-fold higher in active lesions than in inactive lesions (p&lt;0.05). The ratio of AΔR to lesion area was associated with classification of active lesions (odds ratio = 1.031; 95% confidence interval = 1.005–1.058). After pH cycling, the active lesions showed about 2- and 8-fold greater reductions in the median values of AΔR and fluorescence loss related to lesion volume (ΔQ) compared with inactive lesions (p&lt;0.05). In conclusion, red fluorescence differs depending on lesion activity, and the red fluorescence area and lesion volume change following remineralization. The results suggest that measuring red fluorescence may be a useful way of objectively evaluating lesion activity of smooth surface lesions.
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Bernardo, J. M., and M. Ilhéu. "Red swamp crayfish (Procambarus clarkii): Contribution to material cycling." SIL Proceedings, 1922-2010 25, no. 4 (October 1994): 2447–49. http://dx.doi.org/10.1080/03680770.1992.11900666.

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Dissertations / Theses on the topic "Cycling RTD"

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Atris, Youssef H. "Design of RSD-cyclic and hybrid RSD-Cyclic/sigma-delta ADCs." Diss., Wichita State University, 2007. http://hdl.handle.net/10057/1421.

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In this research work two contributions to the area of analog to digital data converters have been discussed. The area of focus is the RSD-Cyclic and sigma-delta ADC. First a novel hybrid RSD-Cyclic-sigma-delta architecture is introduced which is a combination of the RSDCyclic ADC and sigma-delta ADC architectures. The resolution obtained with this hybrid architecture is n = n1 + n2 , where n1 = MSBrsd stands for the most significant bits obtained from the RSD-architecture and n2 = LSBsdl stands for the least significant bits obtained from the sigma-delta architecture. Since the sigma-delta block is required to achieve only an n2-bit resolution (n2, n1 < n ) the over-sampling ratio required for the sigma-delta is not as high as the over-sampling ratio required to achieve n-bit resolution. Also the requirements on the RSD-Cyclic block are only the requirements to achieve n1-bit resolution, which means that the requirements on the analog building blocks for the RSD-Cyclic part are more relaxed. Secondly, in the RSD-Cyclic area we have introduced a circuit technique that allows an entire ADC system to run on one operational amplifier without any loss of functionality. Therefore we will be saving power and area, both very desirable features for mobile applications.
Thesis (Ph.D.)--Wichita State University, College of Engineering, Dept. of Electrical and Computer Engineering
"July 2007."
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Atris, Youssef H. Paarmann Larry D. "Design of RSD-cyclic and hybrid RSD-Cyclic/sigma-delta ADCs /." Diss., A link to full text of this thesis in SOAR, 2007. http://hdl.handle.net/10057/1421.

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Farhat, Farhat Agribi. "Performance of concrete structures retrofited with CARDIFRC RTM after thermal cycling." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/55930/.

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A new retrofitting technique using CARDIFRCRTM, a material compatible with concrete, has recently been developed at Cardiff University. It overcomes some of the problems associated with the current techniques based on externally bonded steel plates and FRP (fibre-reinforced polymer), which are due to the mismatch of their tensile strength and stiffness with that of concrete structure being retrofitted. This study investigates the effect of thermal cycles on the performance of reinforced concrete control and retrofitted beams. The concrete beams were heated to a maximum temperature of 90°C from the room temperature of about 25°C. The number of thermal cycles varied from 0 to 90 cycles. After the requisite number of thermal cycles, the beams were tested at room temperature in four-point bending. The tests indicate that the retrofitted beams are stronger, stiffer and more importantly failed in flexure. No visual deterioration or bond degradation was observed after thermal cycling of the retrofitted beams (the bond between the repair material and the concrete substrate remained intact) attesting to the good thermal compatibility between the concrete and CARDIFRCRTM. Therefore, this type of retrofit material can be successfully used in hot climates. The study also evaluates the performance of normal and high strength concretes repaired with CARDIFRCRTM using the wedge splitting test (WST). The main factors that could affect the bond between the repair material and concrete such as the surface roughness and thermal cycling are also investigated. It is shown that surface roughness plays a significant role in the overall bonding system, and no visual deterioration is observed after thermal cycling. Two analytical/computational models for predicting the ultimate moment capacity and the complete load-deflection behaviour of the retrofitted beams were applied. Both models predict very well the ultimate moment capacity of the retrofitted beams.
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Reinmann, Andrew B. "Effects of Harvesting on Nutrient Cycling, Red Spruce Radial Growth, and Dendrochemistry 30 Years after Harvesting in Northern Maine, USA." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/ReinmannAB2006.pdf.

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Cesana, Sonia. "Functionalization of poly(2-oxazoline)s with cyclic RGD peptides." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=974209643.

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Maren, D. S. van. "Morphodynamics of a cyclic prograding delta : the Red River, Vietnam /." Utrecht : Royal Dutch Geographical Soc. [u.a.], 2004. http://www.gbv.de/dms/goettingen/396699715.pdf.

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Harrison, Kathryn Ann. "How browsing by red deer impacts on soil nutrient cycling in regenerating native woodland in the Scottish Highlands." Thesis, Lancaster University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421618.

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McLatchie, Linda. "Block of the cyclic GMP-activated conductance of salamander rod photoreceptors." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320405.

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Rix, Laura [Verfasser], Christian [Akademischer Betreuer] Wild, and Claudio [Akademischer Betreuer] Richter. "Carbon and nitrogen cycling by Red Sea coral reef sponges / Laura Rix. Betreuer: Christian Wild. Gutachter: Christian Wild ; Claudio Richter." Bremen : Staats- und Universitätsbibliothek Bremen, 2015. http://d-nb.info/1079652337/34.

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HOLTZCLAW, JOHN DAVID. "CHARACTERIZATION OF LIGHT SICKLE ERYTHROCYTES DERIVED FROM DENSE ERYTHROCYTES IN VITRO." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990632508.

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Books on the topic "Cycling RTD"

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Hochmuth, Andreas. Kommt Zeit, kommt Rad: Eine Kulturgeschichte des Radfahrens. Wien: ÖBV-Publikumsverlag, 1991.

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Ralf, Beduhn, and Klocksin Jens 1957-, eds. Rad, Kultur, Bewegung: 100 Jahre rund ums Rad : Rad- und Kraftfahrerbund Solidarität : illustrierte Geschichte 1896-1996. Essen: Klartext-Verlag, 1995.

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Grote, Lion. "Alles fährt Rad!": Das gesellschaftliche Phänomen Radfahren in der Sport im Bild 1895-1904. München: AVM, 2011.

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Maren, D. S. van. Morphodynamics of a cyclic prograding delta: The Red River Vietnam. Utrecht: Royal Dutch Geographical Society, 2003.

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Auf dem Rad: Eine Frage der Haltung. München: Deutsche Verlags-Anstalt, DVA, 2012.

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Rad Rides The Best Bmx Bikes Of All Time. Laurence King, 2012.

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NoteBooks, Sappuris. Cycling Journal, Red Cover: 100 Pages - Large. Independently Published, 2021.

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Honor-Roberts, Ley. My Bike Ride: Band 2A/ Red A Flipchart. HarperCollins Publishers Limited, 2010.

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Rosenberg, Aaron. Mountain Biking: Techniques and Tricks (Rad Sports Techniques and Tricks). Rosen Publishing Group, 2003.

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Company, Cyclone Fence. Cyclone Red Tag Fence and Products. Creative Media Partners, LLC, 2021.

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Book chapters on the topic "Cycling RTD"

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De Klein, C. A. M., R. Harrison, and E. I. Lord. "Comparison of N2O Flux Measurements Using Gas Chromatography and Photo-Acoustic Infra-Red Spectroscopy." In Progress in Nitrogen Cycling Studies, 533–36. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_87.

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Rincent, Jean-Jacques Henri. "The Fatigue Phenomenon." In Ground Anchors, 77–80. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4414-5_13.

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AbstractDuring testing, we noted the influence of cyclic loads on tie-rod load losses. In a number of tests, we measured the deformations induced in the tie rods by the loads of railway trains. During direct tensile tests, we observed strand failures in tie rods subjected to these loads.
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Pons, Jean-François, Mamadou Sow, Frédéric Lamaty, Jean-Luc Fauchére, Annie Molla, Philippe Viallefont, and René Lazaro. "New RGD amphiphilic cyclic peptide and new RGD-mimetic constrained diketopiperazines." In Peptides Frontiers of Peptide Science, 176–77. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/0-306-46862-x_69.

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Miller, W. H. "Evaluation of Rod Internal Transmitter Candidates: Cyclic GMP." In The Molecular Mechanism of Photoreception, 109–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-70444-4_8.

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Cramer, Michael. "The Berlin Wall Trail: A Cycling and Hiking Route on the Traces of Berlin’s East–West Division During the Cold War." In Greening in the Red Zone, 445–49. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-90-481-9947-1_34.

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Warren, René, and Robert S. Molday. "Regulation of the Rod Photoreceptor Cyclic Nucleotide-Gated Channel." In Advances in Experimental Medicine and Biology, 205–23. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0121-3_12.

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Riedkina, Ganna P., Volodmyr S. Krasnorutskyy, Viktor M. Grytsyna, and Vadym V. Grudnitskii. "Effect of Thermal Cycling of Zr-1%Nb Fuel Rod Claddings on Hydride Reorientation." In Zirconium in the Nuclear Industry: 20th International Symposium, 615–38. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2023. http://dx.doi.org/10.1520/stp164520220017.

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Yang, Sheng-Qi. "Mechanical Damage Characteristics of Red Sandstone Under Triaxial Cyclic Loading." In Mechanical Behavior and Damage Fracture Mechanism of Deep Rocks, 55–84. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7739-7_3.

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Nguyen, Nam Hong, and Manh Van Pham. "Deformation Properties of Red River Sand in Cyclic Triaxial Tests." In Lecture Notes in Civil Engineering, 2375–88. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9722-0_163.

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Burnier, John P., Peter L. Barker, Sherron Bullens, Stuart Bunting, Daniel J. Burdick, Kathryn S. Chan, Thomas R. Gadek, et al. "Small cyclic RGD containing peptides as potent inhibitors of platelet aggregation." In Peptides, 755–56. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2264-1_303.

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Conference papers on the topic "Cycling RTD"

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Ginetti, Vandemeulebroecke, and Jespers. "RSD cyclic analog-to-digital converter." In 1993 Symposium on VLSI Circuits. IEEE, 1988. http://dx.doi.org/10.1109/vlsic.1988.1037455.

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Galins, Janis, Aigars Laizans, and Ainars Galins. "Increasing cyclone efficiency by using a separator plate." In Research for Rural Development, 2018. Latvia University of Life Sciences and Technologies, 2018. http://dx.doi.org/10.22616/rrd.24.2018.032.

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Soufi, B., S. Q. Malik, and R. L. Geiger. "A capacitor sharing technique for RSD cyclic ADC." In 48th Midwest Symposium on Circuits and Systems, 2005. IEEE, 2005. http://dx.doi.org/10.1109/mwscas.2005.1594237.

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Bezzateev, Sergey. "One subclass of cyclic generalized (L,G) codes with separable Goppa polynomial." In 2014 XIV International Symposium on Problems of Redundancy in Information and Control Systems (REDUNDANCY). IEEE, 2014. http://dx.doi.org/10.1109/red.2014.7016699.

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Hao Meng, Air Paasio, and Jia Sun. "A capacitor mismatch insensitive technique for RSD cyclic ADC." In 2011 European Conference on Circuit Theory and Design (ECCTD). IEEE, 2011. http://dx.doi.org/10.1109/ecctd.2011.6043399.

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Lomakov, Valeriy. "On a class of cyclic codes whose minimum distance exceeds the BCH bound." In 2012 XIII International Symposium on Problems of Redundancy in Information and Control Systems (RED). IEEE, 2012. http://dx.doi.org/10.1109/red.2012.6338404.

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Kubar, Miloslav, Ondrej Subrt, Pravoslav Martinek, and Jiri Jakovenko. "Experience in Virtual Testing of RSD cyclic A/D converters." In 2009 12th International Symposium on Design and Diagnostics of Electronic Circuits & Systems. IEEE, 2009. http://dx.doi.org/10.1109/ddecs.2009.5012123.

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Nachtigall, Beate, and Norbert Sewald. "Synthesis of Halogenated Cyclic RGD-Peptides as Potent SMDC-ligands." In 37th European Peptide Symposium, 2132. The European Peptide Society, 2024. http://dx.doi.org/10.17952/37eps.2024.p2132.

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Nickell, Ian, and Terry Treiberg. "Autonomous Control of Well Downtime to Optimize Production and Cycling in Sucker Rod Pump Artificially Lifted Wells." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206236-ms.

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Abstract For decades sucker rod pump artificially lifted wells have used devices called pump off controllers (POC) to match the pumping unit's runtime to the available reservoir production by idling the well for a set time where variable frequencies drives are not available. In doing this the POC allows the well to enter a set period of downtime when the downhole pump fillage is incomplete to avoid premature failures, and then brings the well back online to operate before production is lost. Although this method has been successful for several years, autonomous control algorithms can be utilized to reduce failures or increase production in cases where the downtime is not already optimized. Optimizing the idle time for a sucker rod pump artificially lifted well involves understanding the amount of time required to fill the near wellbore storage area before generating a fluid column above the pump intake that will begin to hinder inflow from the reservoir into the wellbore. By varying the idle time and observing the impact on production and cycles the program hunts for the optimal idle time. By constantly hunting for the optimal idle time the optimization process can adjust the idle time when operating conditions change. This gives the advantage of always meeting the current well bore and reservoir conditions without having to have a user make these changes and determine what the downtime for the well is. Autonomously modulating the idle time for a well, if done properly will either reduces incomplete fillage pump strokes, in cases where the idle time is too short, or will increase the wells production in cases where the idle time is too long. Overall this will result in the optimization of wells by reducing failures and/or increasing production, generating a huge value to the end user by automating the entire process of downtime optimization.
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Nickell, Ian, and Terry Treiberg. "Autonomous Control of Well Downtime to Optimize Production and Cycling in Sucker Rod Pump Artificially Lifted Wells." In SPE Artificial Lift Conference and Exhibition - Americas. SPE, 2022. http://dx.doi.org/10.2118/209743-ms.

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Abstract For decades sucker rod pump artificially, lifted wells have used devices called pump off controllers (POC) to match the pumping unit's runtime to the available reservoir production by idling the well for a set time where variable frequency drives are not available. In doing this the POC allows the well to enter a set period of downtime when the downhole pump fillage is incomplete to avoid premature failures, and then brings the well back online to operate before production is lost. Although this method has been successful for several years, autonomous control algorithms can be utilized to reduce failures or increase production in cases where the downtime is not already optimized. Optimizing the idle time for a sucker rod pump artificially lifted well involves understanding the amount of time required to fill the near wellbore storage area before generating a fluid column above the pump intake that will begin to hinder inflow from the reservoir into the wellbore. By varying the idle time and observing the impact on production and cycles the program hunts for the optimal idle time. By constantly hunting for the optimal idle time the optimization process can adjust the idle time when operating conditions change. This gives the advantage of always meeting the current wellbore and reservoir conditions without human intervention. Autonomously modulating the idle time for a well, if done properly will reduce incomplete fillage pump strokes in cases where the idle time is too short or will increase the wells production in cases where the idle time is too long. Overall this will result in the optimization of wells by reducing failures and/or increasing production, generating a huge value to the end user by automating the entire process of downtime optimization.
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Reports on the topic "Cycling RTD"

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Montgomery, Rose, Jy-An Wang, Hong Wang, Bruce Bevard, Darren Skitt, and Oscar Martinez. Sister Rod Destructive Examinations (FY20), Appendix F: Cyclic Integrated Reversible-Bending Fatigue Tests. Office of Scientific and Technical Information (OSTI), November 2020. http://dx.doi.org/10.2172/1764470.

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Montgomery, Rose, Jy-An Wang, Paul Cantonwine, Yadukrishnan Sasikumar, Hong Wang, Bruce Bevard, Darren Skitt, and Oscar Martinez. Sister Rod Destructive Examinations (FY21) Appendix F: Cyclic Integrated Reversible-Bending Fatigue Tests. Office of Scientific and Technical Information (OSTI), March 2022. http://dx.doi.org/10.2172/1864437.

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Montgomery, Rose, Jy-An Wang, Paul Cantonwine, Yadukrishnan Sasikumar, Hong Wang, Bruce Bevard, Darren Skitt, and Oscar Martinez. Sister Rod Destructive Examinations (FY21) Appendix F: Cyclic Integrated Reversible-Bending Fatigue Tests. Office of Scientific and Technical Information (OSTI), March 2022. http://dx.doi.org/10.2172/1864437.

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Cantonwine, Paul, Bruce Bevard, Darren Skitt, Yadu Sasikumar, Oscar Martinez, Rose Montgomery, Hong Wang, and Jy-An Wang. Sister Rod Destructive Examinations (FY22) Appendix F: Cyclic Integrated Reversible-Bending Fatigue Tests. Office of Scientific and Technical Information (OSTI), April 2023. http://dx.doi.org/10.2172/1976050.

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Cantonwine, Paul, Rose Montgomery, Hong Wang, Bruce Bevard, Yadu Sasikumar, Oscar Martinez, Darren Skitt, and Jy-An Wang. Sister Rod Destructive Examinations (FY23) Appendix F: Cyclic Integrated Reversible-Bending Fatigue Tests. Office of Scientific and Technical Information (OSTI), January 2024. http://dx.doi.org/10.2172/2345328.

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Sukasih, Amang S., and Victoria Scott. Cyclical Tree-Based Hot Deck Imputation. RTI Press, June 2023. http://dx.doi.org/10.3768/rtipress.2023.mr.0052.2307.

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Hot deck imputation is a method for filling in a missing value in a survey item (item nonrespondent) with a valid reported value from a donor (item respondent) within the survey. Our paper presents a multivariate hot deck imputation method called Cyclical Tree-Based Hot Deck (CTBHD). This method was developed to handle missing values in complex survey data with many different types of variables and allows the user to customize imputation classes, use sorting variables, impute vectors and compositional variables, and even edit or recode data “on-the-fly.” Additionally, CTBHD employs a cycling approach to get more stable imputed values with less bias and variance. Our paper evaluates the performance of CTBHD imputation through a simulation study using publicly available survey data from the 2020 Residential Energy Consumption Survey. Developed as a system for imputation, the CTBHD system is proprietary to RTI International.
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Cantonwine, Paul. Sister Rod Destructive Examinations (FY23) Appendix F3: Uncertainty and Conservative Bias in the Cyclic Integrated Reversible-Bending Fatigue Test. Office of Scientific and Technical Information (OSTI), September 2023. http://dx.doi.org/10.2172/2345331.

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Hodul, M., H. P. White, and A. Knudby. A report on water quality monitoring in Quesnel Lake, British Columbia, subsequent to the Mount Polley tailings dam spill, using optical satellite imagery. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330556.

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In the early morning on the 4th of August 2014, a tailings dam near Quesnel, BC burst, spilling approximately 25 million m3 of runoff containing heavy metal elements into nearby Quesnel Lake (Byrne et al. 2018). The runoff slurry, which included lead, arsenic, selenium, and vanadium spilled through Hazeltine Creek, scouring its banks and picking up till and forest cover on the way, and ultimately ended up in Quesnel Lake, whose water level rose by 1.5 m as a result. While the introduction of heavy metals into Quesnel Lake was of environmental concern, the additional till and forest cover scoured from the banks of Hazeltine Creek added to the lake has also been of concern to salmon spawning grounds. Immediate repercussions of the spill involved the damage of sensitive environments along the banks and on the lake bed, the closing of the seasonal salmon fishery in the lake, and a change in the microbial composition of the lake bed (Hatam et al. 2019). In addition, there appears to be a seasonal resuspension of the tailings sediment due to thermal cycling of the water and surface winds (Hamilton et al. 2020). While the water quality of Quesnel Lake continues to be monitored for the tailings sediments, primarily by members at the Quesnel River Research Centre, the sample-and-test methods of water quality testing used, while highly accurate, are expensive to undertake, and not spatially exhaustive. The use of remote sensing techniques, though not as accurate as lab testing, allows for the relatively fast creation of expansive water quality maps using sensors mounted on boats, planes, and satellites (Ritchie et al. 2003). The most common method for the remote sensing of surface water quality is through the use of a physics-based semianalytical model which simulates light passing through a water column with a given set of Inherent Optical Properties (IOPs), developed by Lee et al. (1998) and commonly referred to as a Radiative Transfer Model (RTM). The RTM forward-models a wide range of water-leaving spectral signatures based on IOPs determined by a mix of water constituents, including natural materials and pollutants. Remote sensing imagery is then used to invert the model by finding the modelled water spectrum which most closely resembles that seen in the imagery (Brando et al 2009). This project set out to develop an RTM water quality model to monitor the water quality in Quesnel Lake, allowing for the entire surface of the lake to be mapped at once, in an effort to easily determine the timing and extent of resuspension events, as well as potentially investigate greening events reported by locals. The project intended to use a combination of multispectral imagery (Landsat-8 and Sentinel-2), as well as hyperspectral imagery (DESIS), combined with field calibration/validation of the resulting models. The project began in the Autumn before the COVID pandemic, with plans to undertake a comprehensive fieldwork campaign to gather model calibration data in the summer of 2020. Since a province-wide travel shutdown and social distancing procedures made it difficult to carry out water quality surveying in a small boat, an insufficient amount of fieldwork was conducted to suit the needs of the project. Thus, the project has been put on hold, and the primary researcher has moved to a different project. This document stands as a report on all of the work conducted up to April 2021, intended largely as an instructional document for researchers who may wish to continue the work once fieldwork may freely and safely resume. This research was undertaken at the University of Ottawa, with supporting funding provided by the Earth Observations for Cumulative Effects (EO4CE) Program Work Package 10b: Site Monitoring and Remediation, Canada Centre for Remote Sensing, through the Natural Resources Canada Research Affiliate Program (RAP).
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Wu, Yingjie, Selim Gunay, and Khalid Mosalam. Hybrid Simulations for the Seismic Evaluation of Resilient Highway Bridge Systems. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/ytgv8834.

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Bridges often serve as key links in local and national transportation networks. Bridge closures can result in severe costs, not only in the form of repair or replacement, but also in the form of economic losses related to medium- and long-term interruption of businesses and disruption to surrounding communities. In addition, continuous functionality of bridges is very important after any seismic event for emergency response and recovery purposes. Considering the importance of these structures, the associated structural design philosophy is shifting from collapse prevention to maintaining functionality in the aftermath of moderate to strong earthquakes, referred to as “resiliency” in earthquake engineering research. Moreover, the associated construction philosophy is being modernized with the utilization of accelerated bridge construction (ABC) techniques, which strive to reduce the impact of construction on traffic, society, economy and on-site safety. This report presents two bridge systems that target the aforementioned issues. A study that combined numerical and experimental research was undertaken to characterize the seismic performance of these bridge systems. The first part of the study focuses on the structural system-level response of highway bridges that incorporate a class of innovative connecting devices called the “V-connector,”, which can be used to connect two components in a structural system, e.g., the column and the bridge deck, or the column and its foundation. This device, designed by ACII, Inc., results in an isolation surface at the connection plane via a connector rod placed in a V-shaped tube that is embedded into the concrete. Energy dissipation is provided by friction between a special washer located around the V-shaped tube and a top plate. Because of the period elongation due to the isolation layer and the limited amount of force transferred by the relatively flexible connector rod, bridge columns are protected from experiencing damage, thus leading to improved seismic behavior. The V-connector system also facilitates the ABC by allowing on-site assembly of prefabricated structural parts including those of the V-connector. A single-column, two-span highway bridge located in Northern California was used for the proof-of-concept of the proposed V-connector protective system. The V-connector was designed to result in an elastic bridge response based on nonlinear dynamic analyses of the bridge model with the V-connector. Accordingly, a one-third scale V-connector was fabricated based on a set of selected design parameters. A quasi-static cyclic test was first conducted to characterize the force-displacement relationship of the V-connector, followed by a hybrid simulation (HS) test in the longitudinal direction of the bridge to verify the intended linear elastic response of the bridge system. In the HS test, all bridge components were analytically modeled except for the V-connector, which was simulated as the experimental substructure in a specially designed and constructed test setup. Linear elastic bridge response was confirmed according to the HS results. The response of the bridge with the V-connector was compared against that of the as-built bridge without the V-connector, which experienced significant column damage. These results justified the effectiveness of this innovative device. The second part of the study presents the HS test conducted on a one-third scale two-column bridge bent with self-centering columns (broadly defined as “resilient columns” in this study) to reduce (or ultimately eliminate) any residual drifts. The comparison of the HS test with a previously conducted shaking table test on an identical bridge bent is one of the highlights of this study. The concept of resiliency was incorporated in the design of the bridge bent columns characterized by a well-balanced combination of self-centering, rocking, and energy-dissipating mechanisms. This combination is expected to lead to minimum damage and low levels of residual drifts. The ABC is achieved by utilizing precast columns and end members (cap beam and foundation) through an innovative socket connection. In order to conduct the HS test, a new hybrid simulation system (HSS) was developed, utilizing commonly available software and hardware components in most structural laboratories including: a computational platform using Matlab/Simulink [MathWorks 2015], an interface hardware/software platform dSPACE [2017], and MTS controllers and data acquisition (DAQ) system for the utilized actuators and sensors. Proper operation of the HSS was verified using a trial run without the test specimen before the actual HS test. In the conducted HS test, the two-column bridge bent was simulated as the experimental substructure while modeling the horizontal and vertical inertia masses and corresponding mass proportional damping in the computer. The same ground motions from the shaking table test, consisting of one horizontal component and the vertical component, were applied as input excitations to the equations of motion in the HS. Good matching was obtained between the shaking table and the HS test results, demonstrating the appropriateness of the defined governing equations of motion and the employed damping model, in addition to the reliability of the developed HSS with minimum simulation errors. The small residual drifts and the minimum level of structural damage at large peak drift levels demonstrated the superior seismic response of the innovative design of the bridge bent with self-centering columns. The reliability of the developed HS approach motivated performing a follow-up HS study focusing on the transverse direction of the bridge, where the entire two-span bridge deck and its abutments represented the computational substructure, while the two-column bridge bent was the physical substructure. This investigation was effective in shedding light on the system-level performance of the entire bridge system that incorporated innovative bridge bent design beyond what can be achieved via shaking table tests, which are usually limited by large-scale bridge system testing capacities.
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EXPERIMENTAL INVESTIGATION ON RESIDUAL STRESS DISTRIBUTION AND RELAXATION EFFECT AT DOUBLE-SIDE WELDED RIB-TO-DECK JOINTS OF ORTHOTROPIC STEEL DECKS. The Hong Kong Institute of Steel Construction, August 2022. http://dx.doi.org/10.18057/icass2020.p.271.

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The welding residual stresses (WRS) will shorten the fatigue resistance of rib-to-deck (RTD) joints of orthotropic steel decks (OSDs) in bridge engineering. It is essential to obtain WRS and its distribution to accurately assess the fatigue damage of RTD joints in OSDs subjected to vehicle loads. Initial WRS will release under cyclic loading, resulting in the redistribution of WRS in steel bridges. To estimate the relaxation of initial transverse WRS, experimental investigations on WRS distribution in initial state and its relaxation law under cyclic loading were conducted of the double-side welded RTD joints using ultrasonic Non-destructive Testing. The results indicate that the initial transverse WRS at the heat affected zone of both inside and outside of decks vary from 0.50fy to 0.83fy, and transform within the range of 0.27fy~0.43fy at both inside and outside surfaces of U-ribs. WRS relaxation is prone to be activated under cyclic loading, especially at the first cycles. Afterwards, the WRS proceed with relaxation at a lower rate, remaining almost stable with more repetitions of loading.
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