Relevant bibliographies by topics / 64Cu, low metal content

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

Academic literature on the topic '64Cu, low metal content'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "64Cu, low metal content"

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Martin, Sebastian, Stephan Maus, Tobias Stemler, et al. "Proof-of-Concept Study of the NOTI Chelating Platform: Preclinical Evaluation of 64Cu-Labeled Mono- and Trimeric c(RGDfK) Conjugates." Molecular Imaging and Biology 23, no. 1 (2020): 95–108. http://dx.doi.org/10.1007/s11307-020-01530-8.

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Abstract Purpose We recently developed a chelating platform based on the macrocycle 1,4,7-triazacyclononane with up to three five-membered azaheterocyclic arms for the preparation of 68Ga- and 64Cu-based radiopharmaceuticals. Based on this platform, the chelator scaffold NOTI-TVA with three additional carboxylic acid groups for bioconjugation was synthesized and characterized. The primary aims of this proof-of-concept study were (1) to evaluate if trimeric radiotracers on the basis of the NOTI-TVA 6 scaffold can be developed, (2) to determine if the additional substituents for bioconjugation a
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Wagener, Karolin, Dennis Renisch, Meike Schinnerer, et al. "Copper-catalyzed click reactions: quantification of retained copper using 64Cu-spiked Cu(I), exemplified for CuAAC reactions on liposomes." Radiochimica Acta 107, no. 7 (2019): 547–54. http://dx.doi.org/10.1515/ract-2018-3000.

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Abstract The Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) is a powerful, highly reliable and selective reaction which allows for a rapid synthesis in high yields and under mild conditions (pH, temperature). However, the cytotoxicity of copper requires its complete removal prior to an application in vivo. This is an issue especially when it comes to CuAAC reactions on macromolecular structures or drug delivery systems, as copper might be retained by these systems. Thus, a quantification of the final copper content of these systems is inevitable, which we exemplified for a CuAAC reaction o
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Kamal, A., S. M. D. Naqvi, and F. Khan. "Production of Low Metal Content Re-refined Lubricating Oil." Petroleum Science and Technology 27, no. 16 (2009): 1810–20. http://dx.doi.org/10.1080/10916460802624039.

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Ruiz-Trejo, Enrique, Paul Boldrin, Alexandra Lubin, et al. "Novel Composite Cermet for Low-Metal-Content Oxygen Separation Membranes." Chemistry of Materials 26, no. 13 (2014): 3887–95. http://dx.doi.org/10.1021/cm501490n.

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Reid, Scott D., and D. G. McDonald. "Metal Binding Activity of the Gills of Rainbow Trout (Oncorhynchus mykiss)." Canadian Journal of Fisheries and Aquatic Sciences 48, no. 6 (1991): 1061–68. http://dx.doi.org/10.1139/f91-125.

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The objective of this study was to characterize the metal binding of the external gill surface in an attempt to interrelate metal chemistry, gill surface binding activity, and possibly metal toxicity. Individual gill arches from adult rainbow trout (Oncorhynchus mykiss) were exposed to various concentrations of either 140La, 45Ca, 109Cd, or 64Cu. The apparent dissociation constant (KD) and capacity (Bmax) of the external gill surface for the metals was calculated using Scatchard plot analysis. Half-saturation time (t1/2) and binding cooperativity (Hn) were also determined. The KD for gill meta
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Arredondo, M., V. Cambiazo, L. Tapia, et al. "Copper overload affects copper and iron metabolism in Hep-G2 cells." American Journal of Physiology-Gastrointestinal and Liver Physiology 287, no. 1 (2004): G27—G32. http://dx.doi.org/10.1152/ajpgi.00297.2003.

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Divalent metal transporter #1 (DMT1) is responsible for intestinal nonheme Fe apical uptake. However, DMT1 appears to have an additional function in Cu transport in intestinal cells. Because the liver has an essential role in body Cu homeostasis, we examined the potential involvement of Cu in the regulation of DMT1 expression and activity in Hep-G2 cells. Cells exposed to 10 μM Cu exhibited a 22-fold increase in Cu content and a twofold decrease in Fe content compared with cells maintained in 0.4 μM Cu. 64Cu uptake in Cu-deficient Hep-G2 cells showed a twofold decrease in Km compared with cell
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Chan, Sun, David Cryer, and Roger I. Price. "Enhancement and Validation of a 3D-Printed Solid Target Holder at a Cyclotron Facility in Perth, Australia." Instruments 3, no. 1 (2019): 12. http://dx.doi.org/10.3390/instruments3010012.

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A 3D-printed metal solid target using additive manufacturing process is a cost-effective production solution to complex and intricate target design. The initial proof-of-concept prototype solid target holder was 3D-printed in cast alloy, Al–7Si–0.6Mg (A357). However, given the relatively low thermal conductivity for A357 (max, 160 W/m·K), replication of the solid target holder in sterling silver (SS925) with higher thermal conductivity (max, 361 W/m·K) was investigated. The SS925 target holder enhances the cooling efficiency of the target design, thus achieving higher target current during irr
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Coward, K. M., A. C. Jones, M. E. Pemble, S. A. Rushworth, L. M. Smith, and T. Martin. "Next generation adduct purification techniques for low oxygen content metal alkyls." Journal of Electronic Materials 29, no. 1 (2000): 151–55. http://dx.doi.org/10.1007/s11664-000-0111-7.

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Rogowski, Marcin, Tomasz Smoliński, Marta Pyszynska, Marcin Brykała, and Andrzej G. Chmielewski. "Studies on hydrometallurgical processes using nuclear techniques to be applied in copper industry. II. Application of radiotracers in copper leaching from flotation tailings." Nukleonika 63, no. 4 (2018): 131–37. http://dx.doi.org/10.2478/nuka-2018-0016.

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Abstract The use of radiotracers in the present study is intended to replace traditional steps of metal quantitative analysis (solution sampling and instrumental chemical analysis) and to allow real-time measurements of metal concentrations during the leaching process. In this study, 64Cu, an isotope of copper, was selected as a radiotracer. Samples of copper flotation tailings were irradiated in the Maria research reactor (Świerk, Poland) and mixed with an inactive portion of the milled fl otation waste. The leaching process was carried out in a glass reactor, and the radiation spectrum was m
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Li, Yuting, Zhiyong Liu, Tianxing Wang, and Shuying Shang. "High-piezoresistive sensitivity of silicone matrix composites with low metal filler content." Materials Letters 171 (May 2016): 252–54. http://dx.doi.org/10.1016/j.matlet.2016.02.093.

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Dissertations / Theses on the topic "64Cu, low metal content"

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Poniger, S., H. Tochon-Danguy, H. Sachinidis, K. Alt, C. Hagemeyer, and A. Scott. "Reducing metal contamination in Cu-64 production." Helmholtz-Zentrum Dresden - Rossendorf, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-166071.

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Introduction In the past several years there has been a growing interest in the development of radiopharmaceuticals labeled with metallic radionuclides (Anderson et al. 1999). Of particular interest is the positron emitter Cu-64 (t½ = 12.7 h) for molecular imaging of small molecules as well as peptides and antibodies (Smith 2004). This has led us to the recent implementation of a solid target production facility using commercially available target irradiation station and chemistry modules. Routine production of Cu-64 was achieved with an average production yield of 0.32 mCi/μAh, however purifi
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Schön, Anke. "Development of alternative 3-way catalysts : Fe-based perovskites with low noble metal content." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10030.

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Cette étude vise à développer de nouveaux catalyseurs 3-voies (TWC) pour le traitement de gaz d’échappement issus de moteurs à essence. TWC doivent simultanément éliminer le monoxyde de carbone, les hydrocarbures et les oxydes d’azote (NOx). Le remplacement partiel des métaux nobles (PGM) qui sont actuellement utilisés comme phase active dans les TWC est l’objectif de cette étude. Afin de parvenir à ce but, des perovskites à base de Fe ont été étudiées. L’inconvénient majeur des PGM est leur rareté qui cause un coût élevé d’exploitation et d’usage. La stabilité des nanoparticules ayant tendanc
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Spöri, Camillo Wolfgang [Verfasser], Peter [Akademischer Betreuer] Strasser, Peter [Gutachter] Strasser, and Ifan E. L. [Gutachter] Stephens. "Structure-stability-activity studies on low Ir content mixed metal oxides for the electrochemical water oxidation in acidic media / Camillo Wolfgang Spöri ; Gutachter: Peter Strasser, Ifan E.L. Stephens ; Betreuer: Peter Strasser." Berlin : Technische Universität Berlin, 2019. http://d-nb.info/119125688X/34.

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Schöen, Anke. "Development of alternative 3-way catalysts : Fe-based perovskites with low noble metal content." Thesis, 2015. http://www.theses.fr/2015LIL10030/document.

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Cette étude vise à développer de nouveaux catalyseurs 3-voies (TWC) pour le traitement de gaz d’échappement issus de moteurs à essence. TWC doivent simultanément éliminer le monoxyde de carbone, les hydrocarbures et les oxydes d’azote (NOx). Le remplacement partiel des métaux nobles (PGM) qui sont actuellement utilisés comme phase active dans les TWC est l’objectif de cette étude. Afin de parvenir à ce but, des perovskites à base de Fe ont été étudiées. L’inconvénient majeur des PGM est leur rareté qui cause un coût élevé d’exploitation et d’usage. La stabilité des nanoparticules ayant tendanc
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Book chapters on the topic "64Cu, low metal content"

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Korovessis, Panagiotis, Thomas Repantis, Panagiotis Aroukatos, and Maria Repanti. "Immunological Adverse Reaction Associated with Low Carbide Content Metal-on-Metal Bearings in a Contemporary Cementless Total Hip Arthroplasty." In Total Hip Arthroplasty. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27361-2_10.

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Pal, Raikamal. "Ricinus communis." In Recent Advancements in Bioremediation of Metal Contaminants. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4888-2.ch008.

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Contamination of soil and ground water with heavy metals is a great threat to human health, vegetation, and wildlife. Pb is the second most hazardous substance according to ATSDR. The main sources of Pb entering an ecosystem are atmospheric Pb (mainly from automobile emission), paint chips, fertilizers, and pesticides and Pb acid batteries or other industrial Pb products. Phytoremediation could provide sustainable techniques for metal remediation. Roots of Ricinus communis were found to accumulate maximum amount of Pb (275.12mg/kg dry wt,). Depending on soil Pb content, the concentration of Pb in shoots of Ricinus communis also varied. In most cases only a small part of Pb was translocated in the aerial parts. In 95% of the plant samples collected, the root Pb concentration are much greater than those of the shoot lead content, indicating low mobility of Pb from roots to the shoots. Their ability to accumulate higher amounts of Pb in their roots and considering their rapid growth rate and biomass, this plant has the potential for removal of Pb from contaminated soil.
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Kouass, Salah, Amor Fadhalaoui, Hassouna Dhaouadi, and Fathi Touati. "Designing and Synthesis of (Cd2+, Li+), Cr3+, Bi3+ Doped CePO4 Materials Optical, Electrochemical, Ionic Conductivity Analysis." In Electrochemical Impedance Spectroscopy. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91330.

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Most of the work has been done on the optical properties of the rare earth doped CePO4, so there are few studies on the effect of metal ion doping on CePO4. The doping improves the properties of the compounds and can lead to new properties. It is the first time, that multi- ionic doping process is used in the CePO4matrix, in order to improve the ionic conductivity and the electrochemical stability. The low percentage of (Cd2+, Li+), Cr3+, Bi3+ dopant affect the structure showing a weak decrease in the lattice parameters compared to the CePO4. Impedance spectroscopy analysis was used to analyze the electrical behavior of samples as a function of frequency at different temperatures. The total electrical conductivity plots obtained from impedance spectra shows an increase of the total conductivity as Li, Cr-content increases. The determined energy gap values decrease with increasingly Li+, Cr3+ and Bi3+ doping content. Electrochemical tests showed an improved capacity when increasing the Li+, Cr3+ and Bi3+ content and a stable cycling performance.
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Dembaremba, Tendai O., Adeniyi S. Ogunlaja, and Zenixole R. Tshentu. "Coordination Polymers and Polymer Nanofibers for Effective Adsorptive Desulfurization." In Nanocomposites for the Desulfurization of Fuels. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2146-5.ch006.

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Desulfurization of fuel oils is an essential process employed in petroleum refineries to reduce the sulfur content to levels mandated for environmental protection. Hydrodesulfurization (HDS), which is currently being employed, is limited in treating refractory organosulfur compounds and only reduces the sulfur content in fuels to a range of 200-500 ppmS. In this chapter, several scientific and technological advances reported in the literature for the desulfurization of fuels are reviewed and discussed. Amongst these techniques, oxidative desulfurization (ODS) and adsorptive desulfurization (ADS) are proposed as additional steps to complement HDS in meeting the mandated ultra-low sulfur levels (10 ppmS). In the ODS technique, refractory organosulfur compounds are oxidized to organosulfones, followed by solvent extraction or adsorption of the organosulfones. The chemistry involved in the development and fabrication of sulfur/sulfone responsive adsorbents is also discussed. The use of molecular imprinted polymers (MIPs) and coordination polymers (CPs) for the selective adsorption of organosulfone compounds (in ODS) and/or organosulfur (in ADS) offers various properties such as imprinting effect, hydrogen bonding, π-π interactions, van der Waals forces, π-complexation, and electrostatic interactions. CPs, in particular metal organic frameworks (MOFs), have been reported to possess suitable features to overcome most of these challenges associated with adsorptive ultra-deep desulfurization when design strategies to achieve good selectivity are strictly followed. Matching the sizes of the cavities to the critical dimensions of the sulfur containing compounds (SCCs), using suitable metal centres which allow for coordinative interaction with the SCCs and using linkers with suitable functionality as to enhance specific interaction (dispersion forces) with the SCCs were considered to be pivotal features to prioritize. The prospects for the use of MIPs and CPs for future industrial applications in desulfurization are envisaged.
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Dembaremba, Tendai O., Adeniyi S. Ogunlaja, and Zenixole R. Tshentu. "Coordination Polymers and Polymer Nanofibers for Effective Adsorptive Desulfurization." In Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8591-7.ch032.

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Desulfurization of fuel oils is an essential process employed in petroleum refineries to reduce the sulfur content to levels mandated for environmental protection. Hydrodesulfurization (HDS), which is currently being employed, is limited in treating refractory organosulfur compounds and only reduces the sulfur content in fuels to a range of 200-500 ppmS. In this chapter, several scientific and technological advances reported in the literature for the desulfurization of fuels are reviewed and discussed. Amongst these techniques, oxidative desulfurization (ODS) and adsorptive desulfurization (ADS) are proposed as additional steps to complement HDS in meeting the mandated ultra-low sulfur levels (10 ppmS). In the ODS technique, refractory organosulfur compounds are oxidized to organosulfones, followed by solvent extraction or adsorption of the organosulfones. The chemistry involved in the development and fabrication of sulfur/sulfone responsive adsorbents is also discussed. The use of molecular imprinted polymers (MIPs) and coordination polymers (CPs) for the selective adsorption of organosulfone compounds (in ODS) and/or organosulfur (in ADS) offers various properties such as imprinting effect, hydrogen bonding, π-π interactions, van der Waals forces, π-complexation, and electrostatic interactions. CPs, in particular metal organic frameworks (MOFs), have been reported to possess suitable features to overcome most of these challenges associated with adsorptive ultra-deep desulfurization when design strategies to achieve good selectivity are strictly followed. Matching the sizes of the cavities to the critical dimensions of the sulfur containing compounds (SCCs), using suitable metal centres which allow for coordinative interaction with the SCCs and using linkers with suitable functionality as to enhance specific interaction (dispersion forces) with the SCCs were considered to be pivotal features to prioritize. The prospects for the use of MIPs and CPs for future industrial applications in desulfurization are envisaged.
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Bethke, Craig M. "Acid Drainage." In Geochemical Reaction Modeling. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195094756.003.0027.

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Acid drainage is a persistent environmental problem in many mineralized areas. The problem is especially pronounced in areas that host or have hosted mining activity (e.g., Lind and Hem, 1993), but it also occurs naturally in unmined areas. The acid drainage results from the weathering of sulfide minerals that oxidize to produce hydrogen ions and contribute dissolved metals to solution. These acidic waters are toxic to plant and animal life, including fish and aquatic insects. Streams affected by acid drainage may be rendered nearly lifeless, their stream beds coated with unsightly yellow and red precipitates of oxy-hydroxide minerals. In some cases, the heavy metals in acid drainage threaten water supplies and irrigation projects. Where acid drainage is well developed and extensive, the costs of remediation can be high. In the Summitville, Colorado district (USA), for example, efforts to limit the contamination of fertile irrigated farmlands in the nearby San Luis Valley and protect aquatic life in the Alamosa River will cost an estimated $100 million or more (Plumlee, 1994a). Not all mine drainage, however, is acidic or rich in dissolved metals (e.g., Ficklin et al., 1992; Mayo et al., 1992; Plumlee et al., 1992). Drainage from mining districts in the Colorado Mineral Belt ranges in pH from 1.7 to greater than 8 and contains total metal concentrations ranging from as low as about 0.1 mg/kg to more than 1000 mg/kg. The primary controls on drainage pH and metal content seem to be (1) the exposure of sulfide minerals to weathering, (2) the availability of atmospheric oxygen, and (3) the ability of nonsulfide minerals to buffer acidity. In this chapter we construct geochemical models to consider how the availability of oxygen and the buffering of host rocks affect the pH and composition of acid drainage. We then look at processes that can attenuate the dissolved metal content of drainage waters. Acid drainage results from the reaction of sulfide minerals with oxygen in the presence of water. As we show in this section, water in the absence of a supply of oxygen gas becomes saturated with respect to a sulfide mineral after only a small amount of the mineral has dissolved.
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Evans, Hugh L. "Cognitive and Behavioral Manifestations of Lead." In Cognitive and Behavioral Abnormalities of Pediatric Diseases. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780195342680.003.0071.

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The link between exposure to lead and children’s cognitive problems was implied in the earliest medical reports of frank lead poisoning of young children in Australia in the 1800s (Lin-Fu 1992). Children with acute severe toxicity of lead (Pb) are now rarely seen in the United States. However, millions of children may have subclinical neurobehavioral disorders associated with chronic low-level exposure to lead, representing a major public health concern (Bellinger 2008a). Lead is a nonessential metal that is recognized as a source of toxic exposure, with the developing nervous system particularly vulnerable. Because of this, U.S. regulations limiting the lead content of gasoline and household paint have led to a gradual reduction of the average blood lead concentration of Americans over the last three decades. Average blood lead levels of children in the United States dropped an estimated 78% from 1976 to 1991 (Brody et al. 1994; Caldwell et al. 2009). Despite these reductions in exposure to lead, new advances in research techniques have documented harmful consequences associated with lower blood lead levels. This raises the possibility that there is no threshold for occurrence of lead-induced toxicity. Bellinger (2008a) refers to “the silent pandemic of neurodevelopmental disorders resulting from children’s continuing exposure to low levels of lead.” The developing brain may be more sensitive to exposure to lead than the adult. Since the pioneering work of Needleman and colleagues (1979), a large scientific literature has documented the deleterious effects of pre- and neonatal exposure to lead. Decrements in IQ scores have proven to be among the most sensitive and consistent consequences of a child’s exposure to lead, but other cognitive and behavioral changes have been described as well, including attention-deficit hyperactivity disorder (ADHD). Among the important current sources of children’s exposure to lead is household dust (Dixon et al. 2009) the lead content in old water pipes, batteries, and from contamination by numerous industrial processes. Pre and postnatal exposure to cigarette smoke is a cofactor with lead exposure in children’s conduct disorders (Braun et al. 2008). Diagnosis of lead-induced disorders involves the determination of exposure to lead and the atomic absorption assay of lead in whole blood.
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Florin Danet, Andrei. "Recent Advances in Antioxidant Capacity Assays." In Antioxidants - Benefits, Sources, Mechanisms of Action. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96654.

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This work presents a survey of the important antioxidant capacity/activity assays applied for a diversity of samples including plant extracts, foods, biological material, etc. The published materials are critically discussed, emphasizing the recent findings in the field. New and emergent antioxidant capacity assays, such as nanoparticles-based assay, are also presented. The discussion includes chemical-based methods as well as biochemical and cellular assays. Chemical methods detailed are radical/ROS-based scavenging assays (the trolox equivalent antioxidant capacity (TEAC/ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), oxygen radical absorbance capacity (ORAC) assays, chemiluminescence methods, total radical-trapping antioxidant parameter (TRAP), total oxy radical scavenging capacity (TOSC), and β-carotene bleaching assays), non-radical redox potential-based assays (ferric reducing antioxidant power (FRAP), cupric reducing antioxidant capacity (CUPRAC), nanoparticle-based methods and electrochemical methods), metal chelation capacity and total phenolic content tests. The biochemical-based assays and in vivo assays discussed include the oxidation of low density lipoprotein (LDL), the thiobarbituric acid reactive substances (TBARS) and the cellular antioxidant activity (CAA) assays. While a direct link between the antioxidant capacity and health benefits is still a matter of debate, the antioxidant testing methodologies presented in this chapter remain valuable for the high efficiency and cost-effective evaluation of antioxidants, from compound discovery to quality control.
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Schilsky, Michael L., and Pramod K. Mistry. "Inherited diseases of copper metabolism: Wilson’s disease and Menkes’ disease." In Oxford Textbook of Medicine, edited by Timothy M. Cox. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198746690.003.0234.

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Copper is an essential metal that is an important cofactor for many proteins and enzymes. Two related genetic defects in copper transport have been described, each with distinct phenotypes. Wilson’s disease—an uncommon disorder (1 in 30 000) caused by autosomal recessive loss-of-function mutations in a metal-transporting P-type ATPase (ATP7B) that result in defective copper excretion into bile and hence copper toxicity. Typical presentation is in the second and third decade of life with liver disease (ranging from asymptomatic to acute fulminant hepatic failure or chronic end-stage liver disease) or neurological or psychiatric disorder (dystonia, dysarthria, parkinsonian tremor, movement disorder, a spectrum of psychiatric ailments). While no single biochemical test or clinical finding is sufficient for establishing the diagnosis, typical findings include low serum ceruloplasmin, high urinary copper excretion, and elevated liver copper content. Corneal Kayser–Fleischer rings may be seen. Treatment is with copper chelating agents and zinc. Liver transplantation is required for fulminant hepatic failure and decompensated liver disease unresponsive to medical therapy. Menkes’ disease—a rare disorder (1 in 300 000) caused by X-linked loss-of-function mutations in a P-type ATPase homologous to ATP7B (ATP7A) that result in defective copper transport across intestine, placenta, and brain and hence cellular copper deficiency. Clinical presentation is in infancy with facial dimorphism, connective tissue disorder, hypopigmentation, abnormal hair, seizures, and failure to thrive, usually followed by death by age 3 years (although some variants with a milder phenotype result from milder mutations, e.g. occipital horn syndrome). Treatment, which is only effective when presymptomatic diagnosis is made in a sibling after florid presentation in a previous affected sibling, is with intravenous copper histidine.
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Wang, J. H. "Lime Potential." In Chemistry of Variable Charge Soils. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195097450.003.0015.

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The properties of hydrogen and aluminum ions have been examined in Chapters 10 and 11. These two ion species are ions that directly induce the acid reaction in soils. In soils devoid of soluble salts, the content of cations is constant and the negative surface charges are saturated by, besides hydrogen and aluminum ions, alkali metal and alkaline earth metal ions. These ions are called base ions. The acidity of a soil is determined chiefly by the ratio of the quantity of hydrogen and aluminum ions to that of base ions. Among these base ions, calcium ions occupy the most important position, because they generally account for 65-80% of the total amount of base ions in variable charge soils. Therefore, calcium is an ion species closely related to the acidity of soils. In addition to the parameter pH that directly reflects the concentration of hydrogen ions, one other desirable way is to find a parameter that can reflect the ratio of the hydrogen ions to the calcium ions. This parameter is the lime potential. Since the introduction of the concept of lime potential 40 years ago, little practical application has been made in soil science, although some further theoretical considerations were advanced in the 1950s and the 1960s. Actually, as shall be seen in this chapter, for strongly acid soils, such as variable charge soils, because the quantity of hydrogen ions is too high and at the same time the quantity of calcium ions is too low, lime potential that can reflect the relative ratio of these two ion species is of significance not only in theory but also in practice. The mathematical expression of lime potential is pH-0.5pCa. Lime potential is a simple function of the chemical potential of calcium hydroxide, lime. Hence it may be called lime potential. The physical meaning of pH-0.5pCa can be derived as follows.
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Conference papers on the topic "64Cu, low metal content"

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NYO, Tun Tun, Antti KAIJALAINEN, Jaakko HANNULA, Mahesh SOMANI, and Jukka KÖMI. "Influence of Chromium content on the mechanical properties and HAZ simulations of Low-Carbon Bainitic Steels." In METAL 2019. TANGER Ltd., 2019. http://dx.doi.org/10.37904/metal.2019.712.

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Nelson, Carl V., and Toan B. Huynh. "Spatial scanning time-domain electromagnetic sensor: high spatial and time resolution signatures from metal targets and low-metal content land mines." In AeroSense 2002, edited by J. Thomas Broach, Russell S. Harmon, and Gerald J. Dobeck. SPIE, 2002. http://dx.doi.org/10.1117/12.479150.

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Nelson, Blaine A., Deborah Schofield, and Leslie M. Collins. "A comparison of neural networks and subspace detectors for the discrimination of low-metal-content landmines." In AeroSense 2003, edited by Russell S. Harmon, John H. Holloway, Jr., and J. T. Broach. SPIE, 2003. http://dx.doi.org/10.1117/12.487220.

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Pristipa, K. V., T. A. Kukulyanskaya, and E. A. Khramtsova. "The content of low molecular weight antioxidants in transgenic plants Nicotiana tabacum under heavy metal salts conditions." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.199.

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We were studied several of antioxidants in transgenic Nicotiana tabacum, plants cultivated in heavy metal polluted soils. The content of phenolic compounds, vitamins C and E in plants increased under these conditions.
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Cameron, Kimberly K., and Alfred M. Pettinger. "The Effect of Low Sulfur Content on the Weldability of Linepipe Steel." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90488.

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Over time, the demand for high-strength linepipe has increased significantly. One of the challenges for developing higher strength linepipe has been maintaining an appropriate level of fracture toughness, yield to tensile strength ratio, and weldability. Fortunately, significant progress has been made in the production of high strength line pipe steel. A major improvement in steel making has been the utilization of secondary steel treatments to refine the steel and accurately control alloy additions to achieve a higher level of steel cleanliness. In particular, these refining treatments have e
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Turhan-Sayan, Gönül, Mesut Dogan, and Omer Yesilyurt. "Inside-the-wall detection of objects with low metal content using the GPR sensor: effects of different wall structures on the detection performance." In Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXIII, edited by Jason C. Isaacs and Steven S. Bishop. SPIE, 2018. http://dx.doi.org/10.1117/12.2304611.

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Nakano, Masakatsu, Tomohiro Tanaka, Masamitsu Abe, Mitsuyoshi Nakatani, and Hidenori Terasaki. "Improvement of Low-Temperature Toughness in Weld Metal Made of 9Cr-1Mo-V Steel by GTAW Method." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93466.

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Abstract Energy demand will increase due to global population growth in the future. As one of solutions for the demand, it will be necessary to operate petroleum service plants more efficiently. To improve refining efficiency, operation at higher temperatures is required of reactors used in high-pressure hydrogen service at the plants. 9Cr-1Mo-V steel has excellent creep strength compared to 2 1/4Cr-1Mo steel and 2 1/4Cr-1Mo-V steel, which have been conventionally applied to reactors, and has been already put into commercial use for boilers of thermal power plants, etc. Further application of
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Honma, Yuta, Rinzo Kayano, Mikihiro Sakata, and Ken Yamashita. "Existence Form of Boron in Dissimilar Weld Metals of Low Alloy Steel With Boron Bearing High Chromium Steel." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97253.

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Recently, boron bearing high chromium steel is applied to structural material of a fossil power generation plant. Dissimilar weld joints between this steel and low alloy steel are applied for various parts such as boiler or other equipments in this plant. In this weld joint, boron added to low alloy steel weld metals by the dilution from boron bearing base metal. However, the existence form of boron and the effect of boron on reheat cracking susceptibility during post weld heat treatment (PWHT) have not been surveyed in previous literature. So, reheat cracking test, precipitated carbide observ
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Silva, Fernando F., Fabio Arroyo, Philippe Darcis, Marcelo Fritz, Marcelo Salani, and Adriano Silva. "Advanced SAWL Developments and Optimizations for High Toughness, Low Hardness and Sour Environment." In 2018 12th International Pipeline Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipc2018-78108.

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Natural gas exploitation has been increasing progressively and the pipeline community are facing more challenging demands to ensure safe and reliable operations. In that direction, gas fields in very harsh environments are demanding material and welding procedure selections to comply with a combination of important requirements such as toughness at low temperature, sour environment, very low hardness, manual ultrasonic inspection (for UOE longitudinal weld soundness assurance) and others. Looking forwarding big challenges, Tenaris Confab has been successfully working to continue improving the
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Almostaneer, Hamad H., Stephen Liu, and David L. Olson. "Characterizing Metal Arc Welding Under Oil (MAW-UO)." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-50286.

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Metal arc welding under oil (MAW-UO) is a new, revolutionary process for the repair of pipelines without the need of hot tapping and constructing bypass lines. The process uses an automated metal arc welding setup with a continuous wire feed. This process was developed for in-situ internal repairs of in-service cross-country pipelines, tanks and vessels by using a smart-pig with a modified mechanical design that allows for welding. Since some of the cross-country pipeline segments are either buried or under highways making access difficult, the new process will provide great flexibility to the
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Reports on the topic "64Cu, low metal content"

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Wang, Jia X., and Michael Furey. Low Noble Metal Content Catalysts/Electrodes for Hydrogen Production by Water Electrolysis. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1104660.

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Wang, Jia. Low Noble Metal Content Catalysts/Electrodes for Hydrogen Production by Water Electrolysis. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1466639.

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Busby, Ryan, Thomas Douglas, Joshua LeMonte, David Ringelberg, and Karl Indest. Metal accumulation capacity in indigenous Alaska vegetation growing on military training lands. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41443.

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Permafrost thawing could increase soil contaminant mobilization in the environment. Our objective was to quantify metal accumulation capacities for plant species and functional groups common to Alaskan military training ranges where elevated soil metal concentrations were likely to occur. Plant species across multiple military training range sites were collected. Metal content in shoots and roots was compared to soil metal concentrations to calculate bioconcentration and translocation factors. On average, grasses accumulated greater concentrations of Cr, Cu, Ni, Pb, Sb, and Zn relative to forb
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Akinleye, Taiwo, Idil Deniz Akin, Amanda Hohner, et al. Evaluation of Electrochemical Treatment for Removal of Arsenic and Manganese from Field Soil. Illinois Center for Transportation, 2021. http://dx.doi.org/10.36501/0197-9191/21-019.

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Soils containing inorganic compounds are frequently encountered by transportation agencies during construction within the right-of-way, and they pose a threat to human health and the environment. As a result, construction activities may experience project delays and increased costs associated with management of inorganic compounds containing soils required to meet environmental regulations. Recalcitrance of metal-contaminated soils toward conventional treatment technologies is exacerbated in clay or organic content-rich fine-grained soils with low permeability and high sorption capacity becaus
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