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Academic literature on the topic 'Relative Water Content (RWC)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Relative Water Content (RWC)"

Chen, Chuhe, J. Scott Cameron, and Ann Marie VanDerZanden. "327 LEAF WATER POTENTIAL, RELATIVE WATER CONTENT AND GAS EXCHANGE OF STRAWBERRY LEAVES IN RESPONSE TO WATE.R STRESS." HortScience 29, no. 5 (1994): 477d—477. http://dx.doi.org/10.21273/hortsci.29.5.477d.

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Leaf water potential (LWP). relative water content (RWC), gas exchange rates and 4th-derivative spectra were measured in water-stressed and normally Irrigated plank of Totem' strawberry (Fragaria × ananassa) grown in a growth chamber. CO2 assimilation rate (A) dropped sharply when LWP decreased from -0.5 to -1.2 MPa and almost ceased as LWP fell below -1.5 MPa. There was a significant but more gradual decline of A as RWC decreased form 90% to 55%. An exponential relationship with A was observed across a wide range of LWP and RWC (Rz= 0.64, 0.86, respectively). LWP was more closely related with

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Chowdhury, JA, MA Karim, QA Khaliq, MSA Khan, SK Paul, and AU Ahmed. "Midday Drop of Relative Leaf Water Content to Drought Tolerance in Soybean." Bangladesh Agronomy Journal 18, no. 2 (2016): 31–38. http://dx.doi.org/10.3329/baj.v18i2.28901.

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An experiment was conducted in a Venylhouse of Bangabandhu Sheikh Mujibur Rahman Agricultural University during September to December 2012 to determine the effect of midday drop of relative water content (RWC) on drought tolerance of soybean genotypes. Four soybean genotypes viz. Shohag, BARI Soybean-6, BD2331 and BGM2026 were used in the study. Plants were grown in pots under stress and control condition. A marked difference in RWC between morning and midday was observed both in stressed and control plants. BARI Soybean-6 showed higher RWC than rest of the genotypes and BGM2026 showed the low

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Shinde, Harshraj, Ambika Dudhate, Atul Sathe, Neha Paserkar, Sopan Ganpatrao Wagh, and Ulhas Sopanrao Kadam. "Gene Coexpression Analysis Identifies Genes Associated with Chlorophyll Content and Relative Water Content in Pearl Millet." Plants 12, no. 6 (2023): 1412. http://dx.doi.org/10.3390/plants12061412.

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Pearl millet is a significant crop that is tolerant to abiotic stresses and is a staple food of arid regions. However, its underlying mechanisms of stress tolerance are not fully understood. Plant survival is regulated by the ability to perceive a stress signal and induce appropriate physiological changes. Here, we screened for genes regulating physiological changes such as chlorophyll content (CC) and relative water content (RWC) in response to abiotic stress by using “weighted gene coexpression network analysis” (WGCNA) and clustering changes in physiological traits, i.e., CC and RWC associa

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Gholizadeh, Amir, Hamid Dehghani, and Mostafa Khodadadi. "Quantitative genetic analysis of water deficit tolerance in coriander through physiological traits." Plant Genetic Resources: Characterization and Utilization 17, no. 03 (2019): 255–64. http://dx.doi.org/10.1017/s1479262118000539.

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AbstractDrought stress restricts the production of agricultural crops through morphological, physiological and biochemical changes in plants. This study explored the genetic control of physiological traits related to drought in coriander. In a diallel analysis, all six parents, their 15 F1 hybrids and 15 F2 populations were subjected to different irrigation regimes including well-watered, mild and severe water deficit stress. Drought stress decreased the relative chlorophyll content (RCC), the relative water content (RWC), chlorophyll a (Chla), chlorophyll b (Chlb), total chlorophyll (TChl) co

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Boyer, John S., Richard A. James, Rana Munns, Tony (A G. ). Condon, and John B. Passioura. "Osmotic adjustment leads to anomalously low estimates of relative water content in wheat and barley." Functional Plant Biology 35, no. 11 (2008): 1172. http://dx.doi.org/10.1071/fp08157.

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Relative water content (RWC) is used extensively to determine the water status of plants relative to their fully turgid condition. However, plants often adjust osmotically to salinity or water deficit, which maintains turgor pressure and obscures the definition of ‘full turgidity’. To explore this problem, turgor was measured by isopiestic psychrometry in mature leaf blades of barley (Hordeum vulgare) and durum wheat (Triticum turgidum ssp. durum) salinised to 150 mm NaCl, or bread wheat (Triticum aestivum) grown in soil dehydrated to varying degrees. Osmotic adjustment maintained turgor in al

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Jolly, W. Matt, Ann M. Hadlow, and Kathleen Huguet. "De-coupling seasonal changes in water content and dry matter to predict live conifer foliar moisture content." International Journal of Wildland Fire 23, no. 4 (2014): 480. http://dx.doi.org/10.1071/wf13127.

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Live foliar moisture content (LFMC) significantly influences wildland fire behaviour. However, characterising variations in LFMC is difficult because both foliar mass and dry mass can change throughout the season. Here we quantify the seasonal changes in both plant water status and dry matter partitioning. We collected new and old foliar samples from Pinus contorta for two growing seasons and quantified their LFMC, relative water content (RWC) and dry matter chemistry. LFMC quantifies the amount of water per unit fuel dry weight whereas RWC quantifies the amount of water in the fuel relative t

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Budiyanto, Susilo, Hanifah Syifaa Almas, and Rosyida Rosyida. "Involvement of humic acid in production and physiology of soybean (Glycine max L.) under drought stress conditions." AGROMIX 15, no. 2 (2024): 186–92. https://doi.org/10.35891/agx.v15i2.4432.

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Introduction: This study aims to determine the best effect of soybean plant production and physiology on humic acid application under drought-stress conditions. Methods: This study used a factorial complete randomized design with three levels of humic acid (0 ppm, 500 ppm, and 1000 ppm) and three levels of drought stress (80% KL, 60% KL, and 40%). The parameters analyzed were the number of flowers, pod fresh weight, pod dry weight, number of seeds, leaf chlorophyll, relative water content (RWC), and stomatal density. Results: The highest number of flowers was in the 80% KL drought stress treat

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Maki, Hideki, Valerie Lynch, Dongdong Ma, Mitchell R. Tuinstra, Masanori Yamasaki, and Jian Jin. "Comparison of Various Nitrogen and Water Dual Stress Effects for Predicting Relative Water Content and Nitrogen Content in Maize Plants through Hyperspectral Imaging." AI 4, no. 3 (2023): 692–705. http://dx.doi.org/10.3390/ai4030036.

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Water and nitrogen (N) are major factors in plant growth and agricultural production. However, these are often confounded and produce overlapping symptoms of plant stress. The objective of this study is to verify whether the different levels of N treatment influence water status prediction and vice versa with hyperspectral modeling. We cultivated 108 maize plants in a greenhouse under three-level N treatments in combination with three-level water treatments. Hyperspectral images were collected from those plants, then Relative Water Content (RWC), as well as N content, was measured as ground tr

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Graves, William R., and Hongyi Zhang. "Relative Water Content and Rooting of Subirrigated Stem Cuttings in Four Environments without Mist." HortScience 31, no. 5 (1996): 866–68. http://dx.doi.org/10.21273/hortsci.31.5.866.

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Air temperature and photosynthetically active radiation (PAR) effects on relative water content (RWC), rooting percentage, root count, and root mass of unmisted, subirrigated stem cuttings of two taxa were determined. Leaf RWC of `Charm' chrysanthemum [Dendranthema ×grandiflorum (Ramat.) Kitamura] decreased until roots initiated and then increased, was lower for cuttings at 23 °C photoperiod/14 °C dark than for cuttings at 31 °C photoperiod/22 °C dark, and was lower at 193 than at 69 μmol·m–2·s–1 PAR. Neither temperature nor PAR affected leaf RWC of `Dollar Princess' fuchsia (Fuchsia ×hybrida

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Tanentzap, Fallon M., Alexandra Stempel, and Peter Ryser. "Reliability of leaf relative water content (RWC) measurements after storage: consequences for in situ measurements." Botany 93, no. 9 (2015): 535–41. http://dx.doi.org/10.1139/cjb-2015-0065.

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Relative water content (RWC) is widely used to describe plant water status, and is commonly measured gravimetrically. The ephemeral nature of leaf fresh mass poses severe constraints for such measurements in field-grown plants. These constraints can be overcome by transporting the leaves in waterproof containers into the lab. However, even then, leaves lose water, and other changes may happen. The effects of a delay on the measurement of RWC have not been quantified so far. In this study, the influence of duration of storage up to 96 h and storage temperature on RWC and its components was inve

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Dissertations / Theses on the topic "Relative Water Content (RWC)"

Vanderbilt, Vern C., Craig S. T. Daughtry, Meredith K. Kupinski, et al. "Estimating the relative water content of leaves in a cotton canopy." SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/626493.

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Remotely sensing plant canopy water status remains a long term goal of remote sensing research. Established approaches to estimating canopy water status - the Crop Water Stress Index, the Water Deficit Index, the Equivalent Water Thickness and the many other indices - involve measurements in the thermal or reflective infrared. Here we report plant water status estimates based upon analysis of polarized visible imagery of a cotton canopy measured by Ground Multiangle SpectroPolarimetric Imager (GroundMSPI). Such estimators potentially provide access to the plant hydrological photochemistry that

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Sulaiman, Z. A. B. "A gamma-ray study of spatial and temporal variation in relative water content of tree stem." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382290.

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Gribble, Karleen D., of Western Sydney Hawkesbury University, and Faculty of Science and Technology. "Towards an understanding of the physiological abnormality of tissue cultured plants known as vitrification." THESIS_FST_HPS_Gribble_K.xml, 1999. http://handle.uws.edu.au:8081/1959.7/417.

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For this research, the abnormality of tissue cultured plantlets,vitrification, was examined in Gypsophila paniculata.Measurement of the relative water content and water saturation deficit of plantlets in culture revealed that vitrified plantlets contain relatively more water and less air spaces than non-vitrified plantlets.The effect of relative humidity on vitrification and growth was investigated using a variety of methods.From the results found, it was determined the defining characteristic of vitrified plantlets is water filled intercellular spaces. It was also determined that the primary

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Robinson, David A. "Soil water content estimates based on the measurement of soil relative permittivity : use of capacitance, time domain reflectometry and impedance sensors." Thesis, University of Ulster, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267823.

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Coleman, David. "Applications of low-field Nuclear Magnetic Resonance technology to the ecophysiology of eucalypts." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/28052.

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The development of a precise, non-destructive method to measure leaf water status is an important step towards testing our theories and models of leaf hydraulic function. Many of the responses of stomata to rapid changes in leaf water content (minutes to hours) are difficult to measure, in part due to destructive sampling methodologies necessary for establishing leaf water content. In this thesis, I use the technology of nuclear magnetic resonance (NMR) relaxometry to measure dynamic in vivo leaf relative water content (RWC). I show how stomata respond to rapid water deficit with a high level

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Pandey, Lopa Mudra. "Electrical resistivity of sandy soil with water, leachates and seawater." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2015. https://ro.ecu.edu.au/theses/1724.

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Liners are used in the engineered containment systems such as landfills for controlling the migration of contaminants. Although there are several techniques for detecting the leakages through the liners, use of the electrical resistivity method can assist in timely detection of contaminant migration in cost-effective manner. This method is based on the well-established fact that the electrical resistivity of soils and other geomaterials is much higher than the electrical resistivity of water, leachates or any liquid effluents which may permeate the landfill foundation material. Additionally, t

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Alvarado, Barrera Nicole Andrea. "Respuestas morfo-fisiológicas de los vástagos y rebrotes en cepas de Peumus boldus Mol. según intensidad de corta, en la comuna de Olmué, Región de Valparaíso." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/151405.

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Memoria para optar al Título Profesional de Ingeniero Forestal<br>Peumus boldus Mol. (Boldo), es una especie endémica y característica del bosque esclerófilo. Su potencial económico está relacionado con la comercialización de sus hojas. El problema asociado a este mercado tiene relación con la sostenibilidad del recurso en el tiempo. Considerando su potencial económico, se evaluaron las respuestas morfo-fisiológicas en rebrotes nuevos y vástagos remanentes, según intensidad de corta, en la Comuna de Olmué, Región de Valparaíso. Se establecieron tres parcelas de 0,2 hectáreas cada una, donde s

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Moore, Zachary T. "ASSESSING THE RELATIVE MOBILITY OF SUBMARINE LANDSLIDES FROM DEPOSIT MORPHOLOGY AND PHYSICAL PROPERTIES: AN EXAMPLE FROM KUMANO BASIN, NANKAI TROUGH, OFFSHORE JAPAN." UKnowledge, 2015. http://uknowledge.uky.edu/ees_etds/27.

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A prominent landslide deposit in the Slope Basin seaward of the Megasplay Fault in the Nankai Trough was emplaced by a high-mobility landslide based on analysis of physical properties and seismic geomorphology. Slide acceleration is a critical variable that determines amplitude of slide-generated tsunami but is many times a variable with large uncertainty. In recent controlled laboratory experiments, the ratio of the shear stress to yield strength (defined as the Flow Factor) controls a wide spectrum of mass movement styles from slow, retrogressive failure to rapid, liquefied flows. Here, we a

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Graça, José Perez da. "Avaliação de parâmetros fisiológicos em cultivares de cana-de-açúcar submetidas ao déficit hídrico /." Jaboticabal : [s.n.], 2009. http://hdl.handle.net/11449/92667.

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Resumo: A cana-de-açúcar (Saccharum spp.) é uma das principais culturas das regiões tropicais, cuja produtividade agrícola pode ser afetada pelo déficit hídrico. Para investigar o processo de tolerância e sensibilidade ao déficit hídrico, diferentes parâmetros fisiológicos foram avaliados em cultivares de cana-de-açúcar tolerantes (SP83-2847 e CTC15) e sensível (SP86-155) ao déficit hídrico. A deficiência hídrica afetou todo o aparato fotossintético das plantas de forma diferenciada dentro e entre as cultivares. A taxa fotossintética e condutância estomática diminuíram significativamente para

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Strabeli, Taila Fernanda. "Resposta hiperespectral na determinação do conteúdo de água na folha em diferentes espécies de Eucalyptus spp." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11152/tde-29112016-145434/.

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Avaliar o estado hídrico das plantas é essencial para o monitoramento das culturas agrícolas e florestais. A interação da radiação eletromagnética com as plantas é um processo estudado por sensoriamento remoto (SR). Através da técnica de SR é possível interpretar os fatores que influenciam na quantidade de energia absorvida, transmitida e refletida pela planta. Neste estudo, buscou-se estabelecer as relações existentes entre variações nos parâmetros da água com o comportamento espectral e gerar modelos matemáticos que sejam capazes de predizer o conteúdo relativo da água (CRA) e espessura equi

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Books on the topic "Relative Water Content (RWC)"

Dillon, Peter James. The relative magnitude of phosphorus sources for small, oligotrophic lakes in Ontario, Canada. Queen's Printer for Ontario, 1992.

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Dillon, Peter James. The relative magnitude of phosphorus sources for small, oligotrophic lakes in Ontario, Canada. Ministry of the Environment, 1992.

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Robinson, David A. Soil water content estimates based on the measurement of soil relative permittivity: Unse of capacitance : Time domain reflectometry and impedance sensors. The Author], 1998.

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Book chapters on the topic "Relative Water Content (RWC)"

de Almeida Arantes, Daniel, Mateus M. Campos, Luiz Eduardo Borges da Silva, et al. "Determination of Water Content in Heavy Fuel Oil Using a Relative Permittivity Meter." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96794-9_34.

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Mishra, Akash, and Bindhu Lal. "Determining the Role of Leaf Relative Water Content and Soil Cation Exchange Capacity in Phytoextraction Process: Using Regression Modelling." In Environmental Challenges and Solutions. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63422-3_7.

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Guo, Chuanchuan, Qin Wan, Ru Wang, Bo Chen, and Ning Chen. "Effect of the Cellulose Ether on Water Loss of the Calcium Sulphoaluminate Cement Mortars." In Springer Proceedings in Materials. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72955-3_29.

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AbstractCellulose ether (CE) is widely used in cement-based materials because of its good water retention capacity that can improve the workability of the fresh mortars significantly. However, in the high temperature conditions, the CE modified cement mortars sometimes are easy to lose their good workability, which may be due to the change of the water-retention capacity of CE. This work investigates the changes in the water loss rate (WLR) of the CE modified calcium sulphoaluminate cement (CSAC) mortars at 20 ℃, 40 ℃, 60 ℃ and 80 ℃ respectively, and the effect of the types and contents of the

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Sniezhkin, Yurii, Zhanna Petrova, Vadym Paziuk, Viacheslav Mykhailyk, Tetiana Korinchevska, and Kateryna Samoilenko. "Technological aspects of producing refuse derived fuel." In ENERGY SYSTEMS AND RESOURCES: OPTIMISATION AND RATIONAL USE. TECHNOLOGY CENTER PC, 2024. https://doi.org/10.15587/978-617-8360-02-3.ch3.

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The involvement of municipal solid waste in the energy balance of Ukraine is one of the important ways of replacing fossil fuels and solving environmental problems related to the disposal of waste in proving ground and landfills. The purpose of the research is to find a rational composition of an alternative solid fuel for burning in cogeneration power plants and an energy-efficient technology for its production. The object of research is alternative solid fuel (RDF- refuse derived fuel) based on combustible components of municipal solid waste. The kinetics of convective drying of RDF of diffe

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Enneb, Hanen, Leila Ben Yahya, Mohamed Ilyas, Datta Asaram Dhale, Mohamed Bagues, and Kamel Nagaz. "Influence of Water Stress on Growth, Chlorophyll Contents and Solute Accumulation in Three Accessions of Vicia faba L. from Tunisian Arid Region." In Abiotic Stress in Plants. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94563.

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In this study, we aim to investigate the physiological and biochemical adaptations of Vicia faba plants to moderate irrigation regime (T1) and describe the effects of water stress on their growth performance and chlorophyll contents. For this reason, three Tunisia accessions (ElHamma, Mareth and Medenine) were studied. An experiment was conducted for one month. Faba bean plants were first grown in a greenhouse and then, exposed to water stress, whereby they were irrigated up to the field capacity (FC) of 0% (control, T0) and 50% of the control (moderate stress, T1). The effect of water stress

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"relative water content." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_181397.

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Espitia Jairo and Caicedo Bernardo. "Study of the mechanical behavior of unsaturated argillaceous rocks." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-601-9-342.

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This paper study the influence of water content on the mechanical behavior and failure process of an unsaturated argillaceous rock. For this, uniaxial compression tests with acoustic emission recording were conducted on specimens at different levels of relative humidity. Results indicate that uniaxial compressive strength and the elastic modulus increases with a reduction in the water content. Additionally, rock moisture seems to influence the volumetric deformation. Analyzing the volumetric stress-strain curves in conjunction with acoustic emission technique was possible to identify the crack

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Newby, P. K. "Alcohol and Health." In Food and Nutrition. Oxford University Press, 2018. http://dx.doi.org/10.1093/wentk/9780190846640.003.0019.

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How is alcohol handled in the body? Alcohol is among the only drugs consumed regularly in the diet other than caffeine. It is water-soluble and distributed into all tissues and fluids in relative proportion to water content. As a result, equal quantities of alcohol...

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Bolokhovskyi, Vladyslav, Olga Nagorna, Valentyna Bolokhovska, et al. "The Role of Biologicals Azotohelp®, Liposam®, and Organic-Balance® as Mitigators of Abiotic Stress in Maize Plants." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-8307-0.ch018.

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In this study the expression of drought-resistance marker genes ZmNHL1, ZmVPP1, ZmNAC111: the antiradical activity, relative water content and biochemical chromatographic profiling of the phenolic compound complex in the leaves of maize plants treated by biopreparations under drought stress, was investigated. Drought stress significantly affected the expression of stress-responsive genes in plants under the action of biopreparations (in 4-7 folds). The maize leaves in the variant with «Organic-Balance®» 0.5 l/ha + «Azotohelp®» 0.3 l/ha + «Liposam®» 0.25 l/ha were characterized by the high cont

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"Drying." In Tanning Chemistry: The Science of Leather, 2nd ed. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788012041-00538.

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Materials based on collagen are viscoelastic: they exhibit the properties of both a viscous liquid, i.e. a flowing medium, and an elastic solid. As a consequence, they have complex relationships with moisture and temperature. This is crucial for the tanner, because leather area depends on the physical conditions of moisture content and temperature. Additionally, the area also depends on the interaction between those parameters during the processing transition from wet leather to dry leather. It has been shown that there are two critical points in the relationship between collagen and water: 60

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Conference papers on the topic "Relative Water Content (RWC)"

Jiang, Xiu, Dingrong Qu, Xiaoliang Song, Xiaohui Liu, and Yanling Zhang. "Impact of Water Content on Corrosion Behavior of CO2 Transportation Pipeline." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05844.

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Abstract CO2 could be transported by pipelines in gaseous, liquid or supercritical phase according to the operating temperature and pressure. Safety concerns might arise from supercritical CO2 transportation pipeline, especially crossing the densely populated areas. Short-distance gaseous CO2 pipeline was designed and constructed for an energy company. Water content is critical to understand the corrosion mechanism of CO2 pipeline. Corrosion behavior of API 5L X65 mild steel exposed to CO2 stream with different relative humidities (RH), temperatures and pressures was investigated by weight-los

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Litke, Wes, Joe Bojes, Pierre Blais, John Lerbscher, and Wellington Wamburi. "Aggressive Corrosion Associated with Salt Deposits in Low Water Content Sour Gas Pipelines." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02339.

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Abstract Low water volumes associated with gas production can lead to salt deposition under conditions that allow water evaporation to occur within a pipeline system. Salt deposits are capable of attracting water vapor from wet gas that has a water content well below the normal dew point. This phenomenon is related to the hygroscopic or deliquescent properties associated with individual salts present in the deposits. The relative humidity at which liquid water starts to accumulate at salt deposits is referred to as the Deliquescence Relative Humidity (DRH). Both MgCl2 and CaCl2 have strong abi

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Orr, J. T., R. S. Fashho, M. C. Burrell, P. C. Sander, and L. D. Rabideau. "Corrosion Behavior of Three Steels in High Temperature Water." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01252.

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Abstract The corrosion behavior of three steels in high temperature water was compared: a low-alloy steel (ASTM A-508), a cast martensitic steel (CA-6NM, UNS J91540) and 403 stainless steel (UNS S40300). Test specimens were exposed to mildly alkaline solution at 260 °C for up to 5,000 hours. Several surface conditions were used, including chemically passivated and electropolished surfaces. The corrosion films consisted of ferrite spinel crystals (AFe2O4) with some basal chromite spinel (ACr2O4) for the steels with higher Cr content. Total corrosion and corrosion product release were also quant

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Minato, Shohei, Motoharu Jinguuji, and Toshiyuki Yokota. "Non-destructive in-situ soil classification using electric and seismic properties to evaluate water pipeline corrosion risk." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.3076.

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<p>Aging water pipelines in Japan, many over 40 years old, face significant corrosion risks influenced by soil properties like electrical resistivity and soil type. To enhance non-destructive corrosion rate estimation, we explore the potential of combining resistivity surveys with seismic measurements. A rock-physics model is developed to estimate resistivity and seismic velocities as functions of clay content and porosity, validated with borehole data, showing a good agreement with field measurements. We propose an inversion method using shear-wave velocity and resistivity data to estim

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Hartt, William H., Olivier Chaix, Richand J. Kessler, and Rodney Powers. "Localized Cathodic Protection of Simulated Prestressed Concrete Pilings in Sea Water." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94291.

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Abstract Corrosion induced deterioration of prestressed concrete pilings in sea water has been established as the predominant failure mode for bridge structures in coastal Florida waters, and a technology involving localized impressed current cathodic protection of the splash zone region in association with conductive rubber anodes has been developed to mitigate this. In the present research a series of experiments involving simulated prestressed concrete piling specimens partially immersed in sea water while cathodically protected has been performed. Variables included 1) concrete mix design,

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Gregg, M. R., A. Sharp, and K. Bartrip. "Corrosion Inhibitor Developments for Offshore Gas Gathering Systems on Canada’S Atlantic Coast." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03332.

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Abstract A laboratory inhibitor selection study was conducted to select suitable corrosion inhibitors for managing corrosion in wet sub-sea pipelines containing ethylene glycol I salt water fluid mixtures. Several inhibitors were screened using static autoclave partitioning tests simulating worst case field conditions at 248 kPa (36 psi) CO2 partial pressure and 75° C (167 F). All inhibitors studied afforded excellent protection against general corrosion but three chemistries were also very effective in preventing pitting attack. Uninhibited lean (~ 20% water content) and rich (~ 50% water con

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Ramachandran, Sunder, Vladimir Jovancicevic, Greg Boyce, Christina Zeadow, and Clyde McAfee. "New Water Soluble High Shear, High Temperature Corrosion Inhibitor." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02277.

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Abstract As shallow onshore and offshore oil fields mature, new discoveries will occur in deeper reservoirs with higher temperatures and velocities that could present severe materials corrosion problems. There are several systems made of mild steel where the flow rates of gas, water and oil are high and the systems experience high velocity corrosion, such as electrical submersible pump (ESP) systems. For these systems, a high shear corrosion inhibitor with high-temperature stability is needed to prevent corrosion. Often, the high shear corrosion inhibitors have a negative impact on produced wa

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Ramachandran, Sunder, Vladimir Jovancicevic, Gerard Williams, Kevyn Smith, and Clyde McAfee. "Development of a New High Shear Corrosion Inhibitor with Beneficial Water Quality Attributes." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10375.

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Abstract There are several systems made of mild steel where the flow rates of gas, water and oil are high and the systems experience high velocity corrosion. For these systems a high shear corrosion inhibitor is needed to prevent corrosion. Often such corrosion inhibitors have a negative impact on produced water quality. In this paper, the development and field trial of a new high shear corrosion inhibitor is described. The new product demonstrates vastly reduced impact on water quality relative to traditional corrosion inhibitors that work under high shear conditions. Test results are present

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Jiang, Xiu, Dingrong Qu, and Xiaoliang Song. "Impact of O2 Content on Corrosion Behavior of X65 Mild Steel in Gaseous, Liquid and Supercritical CO2 Environments." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-14433.

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Abstract CO2 stream in CCS system usually contains impurities, such as water, O2, SO2, NO2, H2S, and other trace substances, which could pose a threat to internal corrosion and integrity of CO2 transportation pipelines. The general and localized corrosion behavior of API 5L X65 mild steel were evaluated using an autoclave both in water-saturated CO2 and CO2-saturated water environments in the presence of varying concentrations of O2. Experiments were performed at 25 °C and 35 °C, 8 MPa and 35 °C, 4 MPa to simulate the conditions encountered during dense, supercritical and gaseous CO2 transport

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Perez, Libardo, Zahid Amjad, and Robert W. Zuhl. "Managing a Cooling System to Prevent Silica Deposition." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05779.

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Abstract Water scarcity has increased the necessity for water re-use, utilization of poor quality water, and operating systems at higher cycles of concentration (COC). High silica content make-up water is a major obstacle to cost-effective treatment programs for system operating at higher COC. The approach most often used for silica limited cooling systems involves using a base treatment program with an overlay or supplemental treatment such as high concentrations of polymer(s) in combination with phosphonate(s) to control silica at concentrations approaching 300 mg/L. However, this approach l

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Reports on the topic "Relative Water Content (RWC)"

Kirchhoff, Helmut, and Ziv Reich. Protection of the photosynthetic apparatus during desiccation in resurrection plants. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7699861.bard.

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In this project, we studied the photosynthetic apparatus during dehydration and rehydration of the homoiochlorophyllous resurrection plant Craterostigmapumilum (retains most of the photosynthetic components during desiccation). Resurrection plants have the remarkable capability to withstand desiccation, being able to revive after prolonged severe water deficit in a few days upon rehydration. Homoiochlorophyllous resurrection plants are very efficient in protecting the photosynthetic machinery against damage by reactive oxygen production under drought. The main purpose of this BARD project was

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Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, et al. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

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Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solu

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Minz, Dror, Stefan J. Green, Noa Sela, Yitzhak Hadar, Janet Jansson, and Steven Lindow. Soil and rhizosphere microbiome response to treated waste water irrigation. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7598153.bard.

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Research objectives : Identify genetic potential and community structure of soil and rhizosphere microbial community structure as affected by treated wastewater (TWW) irrigation. This objective was achieved through the examination soil and rhizosphere microbial communities of plants irrigated with fresh water (FW) and TWW. Genomic DNA extracted from soil and rhizosphere samples (Minz laboratory) was processed for DNA-based shotgun metagenome sequencing (Green laboratory). High-throughput bioinformatics was performed to compare both taxonomic and functional gene (and pathway) differences betwee

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Glass, Samuel V., Samuel L. Zelinka, Charles R. Boardman, and Emil Engelund Thybring. Promoting advances in understanding water vapor sorption in wood: relegating popular models and misconceptions. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541615744.

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Water vapor sorption is a fundamental characteristic of wood as a building material. Apart from empirical prediction, models are often used to interpret the time-dependent process of water vapor uptake (sorption kinetics) and equilibrium states of water in wood (sorption isotherms). This paper summarizes our recent investigations into measurement methods and popular models that are widely used for interpreting these physical phenomena. Commonly used criteria for determining equilibrium moisture content with the dynamic vapor sorption technique yield much larger errors than previously thought.

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Dudley, Lynn M., Uri Shani, and Moshe Shenker. Modeling Plant Response to Deficit Irrigation with Saline Water: Separating the Effects of Water and Salt Stress in the Root Uptake Function. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586468.bard.

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Standard salinity management theory, derived from blending thermodynamic and semi- empirical considerations leads to an erroneous perception regarding compensative interaction among salinity stress factors. The current approach treats matric and osmotic components of soil water potential separately and then combines their effects to compute overall response. With deficit water a severe yield decrease is expected under high salinity, yet little or no reduction is predicted for excess irrigation, irrespective of salinity level. Similarly, considerations of competition between chloride and nitrat

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Schofield, Ian S., Paul L. Brown, Mark J. Logsdon, and Matthew P. Wickham. Waste Rock Dump Characterization Studies at the Bingham Canyon Mine. Utah Geological Survey, 2024. http://dx.doi.org/10.34191/mp-179.

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The Bingham Canyon Mine, located near Salt Lake City, Utah, is surrounded by more than 6 billion tons of waste rock developed over the open cut mining history from 1903 to present; the surface area of the waste rock is approximately 5000 acres. Waste rock dumps have a thickness of more than 1 200 feet from crest to toe. From 1930 to 2000, selected portions of the waste rock dumps were commercially leached using a ferric-sulfate-based lixiviant to extract copper, whereas other portions have only received meteoric leaching. From 2011 to present, Rio Tinto Kennecott has studied the evolution and

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Chutimaworapan, Suchada, Chaiyo Chaichantippayuth, and Areerat Laopaksa. Formulation of pharmaceutical products of Garcinia mangostana Linn. extracts. Chulalongkorn University, 2006. https://doi.org/10.58837/chula.res.2006.32.

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Part I: The purpose of the investigation was to develop the extraction process that was simple, practical and giving high yield. The maceration of dried powder of Garcinia mangostana fruit husk with ethyl acetate gave yellow crystalline powder of mangostin. The yield was calculated as 7.47%. The identification of the Garcinia mangostanahusk extract was carried out by thin-layer chromatography (TLC) and differential scanning calorimetry. The TLC of mangostin was done by using the alumina sheet and ethyl acetate: hexane (3:1) as mobile phase. The Rf value as compared with standard mangostin was

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Snyder, Victor A., Dani Or, Amos Hadas, and S. Assouline. Characterization of Post-Tillage Soil Fragmentation and Rejoining Affecting Soil Pore Space Evolution and Transport Properties. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580670.bard.

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Tillage modifies soil structure, altering conditions for plant growth and transport processes through the soil. However, the resulting loose structure is unstable and susceptible to collapse due to aggregate fragmentation during wetting and drying cycles, and coalescense of moist aggregates by internal capillary forces and external compactive stresses. Presently, limited understanding of these complex processes often leads to consideration of the soil plow layer as a static porous medium. With the purpose of filling some of this knowledge gap, the objectives of this Project were to: 1) Identif

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Ohad, Itzhak, and Himadri Pakrasi. Role of Cytochrome B559 in Photoinhibition. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7613031.bard.

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The aim of this research project was to obtain information on the role of the cytochrome b559 in the function of Photosystem-II (PSII) with special emphasis on the light induced photo inactivation of PSII and turnover of the photochemical reaction center II protein subunit RCII-D1. The major goals of this project were: 1) Isolation and sequencing of the Chlamydomonas chloroplast psbE and psbF genes encoding the cytochrome b559 a and b subunits respectively; 2) Generation of site directed mutants and testing the effect of such mutation on the function of PSII under various light conditions; 3)

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