Gotowe bibliografie tematyczne / Wt 100

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Gotowa bibliografia na temat „Wt 100”

Autor: Grafiati

Data publikacji: 29 lipca 2024

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Wt 100"

Hohage, H., C. Reinhardt, U. Borucki, et al. "Effects of diadenosine polyphosphates on renal function and blood pressure in anesthetized Wistar rats." Journal of the American Society of Nephrology 7, no. 8 (1996): 1216–22. http://dx.doi.org/10.1681/asn.v781216.

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In this study, the effects of diadenosine polyphosphates on kidney function were examined. Intravenous application of diadenosine hexaphosphate (AP6A) led to a significant threefold increase in both urine flow (from 2.45 +/- 0.2 to 13.8 +/- 0.74 microL/min per 100 g body wt (P < 0.05)) and Na+ excretion (from 0.41 +/- 0.12 to 1.52 +/- 0.28 mumol/min per 100 g body wt at a dose of 1.0 mg/kg body wt). In contrast, diadenosine triphosphate dose-dependently reduced urine flow (from 3.74 +/- 0.3 to 2.57 +/- 0.1 microL/min per 100 g body wt (P < 0.05)) and Na+ excretion (from 0.45 +/- 0.1 to 0

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Srivastav, Ajai K., L. Rani, and K. Swarup. "Responses of serum calcium and phosphorus in the frog Rana tigrina to injection of various vitamin D analogs." Canadian Journal of Zoology 65, no. 8 (1987): 2111–12. http://dx.doi.org/10.1139/z87-323.

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Intraperitoneal injections of either vitamin D3 (4 IU/100 g body wt.), 25 hydroxyvitamin D3 (100 ng/100 g body wt.), or 1,25 dihydroxyvitamin D3 (100 ng/100 g body wt.) for 15 days induced hypercalcemia, hyperphosphatemia, and depletion of calcium deposits in the paravertebral lime sacs in an anuran, Rana tigrina.

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Bassett, D. J., E. Bowen-Kelly, and S. S. Reichenbaugh. "Rat lung glucose metabolism after 24 h of exposure to 100% oxygen." Journal of Applied Physiology 66, no. 2 (1989): 989–96. http://dx.doi.org/10.1152/jappl.1989.66.2.989.

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Previous studies with lung homogenates and isolated cells have suggested oxygen cell injury results from the inhibition of key enzymes involved in both cytosolic and mitochondrial energy generation. In this study, the extent and pattern of metabolism of D-[U-14C, 5–3H]glucose was examined in perfused lungs isolated from rats before and after 24 h of in vivo exposure to 100% O2. Lung ATP levels after O2 exposure were maintained by a 53% increase in glucose utilization from an unexposed control value of 18.0 +/- 3.2 to 27.5 +/- 3.0 mumol 3H2O.h-1.g dry wt-1, accounted for by an enhanced rate of

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Acosta-Leal, Rodolfo, Becky K. Bryan, Jessica T. Smith, and Charles M. Rush. "Breakdown of Host Resistance by Independent Evolutionary Lineages of Beet necrotic yellow vein virus Involves a Parallel C/U Mutation in Its p25 Gene." Phytopathology® 100, no. 2 (2010): 127–33. http://dx.doi.org/10.1094/phyto-100-2-0127.

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Breakdown of sugar beet Rz1-mediated resistance against Beet necrotic yellow vein virus (BNYVV) infection was previously found, by reverse genetics, to be caused by a single mutation in its p25 gene. The possibility of alternative breaking mutations, however, has not been discarded. To explore the natural diversity of BNYVV in the field and its effects on overcoming Rz1, wild-type (WT) and resistance-breaking (RB) p25 genes from diverse production regions of North America were characterized. The relative titer of WT p25 was inversely correlated with disease expression in Rz1 plants from Minnes

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Nascimento Nariyoshi, Yuri, Ana Paula Meneguelo, and Rejane De Castro Santana. "Viscosity reduction of water-in-oil emulsion by phase inversion: surfactants performance and characterization." Latin American Journal of Energy Research 11, no. 2 (2024): 10–22. https://doi.org/10.21712/lajer.2024.v11.n2.p10-22.

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The phase inversion technique has received attention in the petroleum industry in order to decrease energy consumption. Crude oil emulsions with model brine solutions containing 1.5% wt NaCl and 1.0 wt.% surfactants were produced and evaluated on electrical conductivity, kinetic stability, microstructure and rheology. It was found that phase inversion occurred in the range of 20-40 wt.% of brine. Emulsions having 10-40 wt.% of brine and Triton-X-100 manifested lower phase separation than without surfactant or with Tween 80, while oil-in-water emulsions having 50 and 60 wt.% of brine and Triton

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Rostianbudi, Feby Y., and Frida Ulfah Ermawati. "FABRIKASI DAN KARAKTERISASI STRUKTUR DAN DENSITAS KERAMIK (Mg0,5Zn0,5)TiO3+x wt.% Bi2O3 SEBAGAI KANDIDAT MATERIAL DIELEKTRIK." Inovasi Fisika Indonesia 9, no. 2 (2020): 72–77. http://dx.doi.org/10.26740/ifi.v9n2.p72-77.

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AbstrakTelah dilakukan fabrikasi dan karakterisasi keramik (Mg0,5Zn0,5)TiO3 (disingkat MZT05)+x wt.% Bi2O3 (x = 0, 1, 3, 5 dan 7) yang diharapkan mampu menghasilkan keramik berbasis MgTiO3 sebagai kandidat material dielektrik. Fabrikasi keramik dilakukan dengan proses milling antara serbuk kristalin MZT05 dengan x wt.% Bi2O3 kemudian hasilnya dikompaksi pada tekanan 10 MPa dan disinter pada suhu 1000 C selama 2 jam untuk menjadi keramik MZT05+x wt.% Bi2O3. Karakterisasi struktur dengan uji XRD menunjukkan bahwa keramik MZT05+0 wt.% Bi2O3 mengandung MgTiO3 sebagai fasa utama dengan % molar = 94

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da Silva, Natan D., Aluisio Andrade-Lima, Marcel R. Chehuen, et al. "Walking Training Increases microRNA-126 Expression and Muscle Capillarization in Patients with Peripheral Artery Disease." Genes 14, no. 1 (2022): 101. http://dx.doi.org/10.3390/genes14010101.

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Patients with peripheral artery disease (PAD) have reduced muscle capillary density. Walking training (WT) is recommended for PAD patients. The goal of the study was to verify whether WT promotes angiogenesis in PAD-affected muscle and to investigate the possible role of miRNA-126 and the vascular endothelium growth factor (VEGF) angiogenic pathways on this adaptation. Thirty-two men with PAD were randomly allocated to two groups: WT (n = 16, 2 sessions/week) and control (CO, n = 16). Maximal treadmill tests and gastrocnemius biopsies were performed at baseline and after 12 weeks. Histological

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Савикин, А. П., А. С. Егоров, А. В. Будруев, И. Ю. Перунин, О. В. Крашенинникова та И. А. Гришин. "Спектральные свойства и антистоксовая люминесценция керамики и стекла TeO-=SUB=-2-=/SUB=--BaF-=SUB=-2-=/SUB=- : Ho-=SUP=-3+-=/SUP=-, Ho-=SUP=-3+-=/SUP=-/Yb-=SUP=-3+-=/SUP=- при возбуждении излучением 1.9 mum Tm : LiYF-=SUB=-4-=/SUB=--лазера". Письма в журнал технической физики 43, № 14 (2017): 34. http://dx.doi.org/10.21883/pjtf.2017.14.44829.16771.

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Показано преобразование ИК-излучения лазера Tm : LiYF4 с длиной волны 1908 nm в видимый свет с максимумом 650 nm керамикой состава (100-x)TeO2-xBaF2-1 wt&#37; HoF3-yYbF3, где x=20,30,40 mol.&#37;, y=0 или 0.5 wt&#37;. На образцах 60TeO2-40BaF2-1 wt&#37; HoF3-0.5 wt&#37; YbF3 наблюдалась антистоксовая люминесценция при пороговой плотности мощности излучения 1.0-1.5 W &#183; cm-2. DOI: 10.21883/PJTF.2017.14.44829.16771

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Conradie, R., W. D. Roos, and H. C. Swart. "Room-temperature oxidation of Fe(100), Fe(100)-3.5 wt.% MoN and segregated MoN: a mathematical analysis." Surface and Interface Analysis 33, no. 8 (2002): 704–11. http://dx.doi.org/10.1002/sia.1437.

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Mohamed, Lamiaa Z., Wafaa A. Ghanem, Omayma A. El Kady, Mohamed M. Lotfy, Hafiz A. Ahmed, and Fawzi A. Elrefaie. "Oxidation Characteristics of Porous Nickel Low-Chromium Binary Alloys in Air at 1273K for 100 h." Key Engineering Materials 786 (October 2018): 37–43. http://dx.doi.org/10.4028/www.scientific.net/kem.786.37.

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The oxidation behavior of porous nickel low-chromium alloys containing up to 1 wt%Cr oxidized in air at 1273K for 100 h was investigated. Porous-duplex scale was formed on the 1 wt%Cr pellets while single oxide layers were obtained on the 0.25 and 0.5 wt%Cr pellets. Cavities were formed underneath the NiO scales and also between both layers formed on the oxidized 1 wt%Cr pellets. Accumulation of NiCr2O4was noticed at the oxide/ metal interface. The growth mechanism of the scales was explained on the basis of molecular oxygen inward migration.

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Rozprawy doktorskie na temat "Wt 100"

Gutierrez, Sanchez Juan Carlos, and Ramirez Juan Diego Ivan Salazar. "Evaluación de la permeabilidad en diseños de concreto con el uso de aditivos SIKA WT-100 y SIKA WT-200 en obras hidráulicas de Lima Metropolitana." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1249.

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Esta tesis tiene un enfoque cuantitativo, la cual propone evaluar la influencia de la permeabilidad en diseños de concreto con el uso de aditivos Sika WT – 100 y Sika WT – 200 en obras hidráulicas de Lima Metropolitana, debido a que estas estructuras almacenan y/o conducen grandes volúmenes de agua a una velocidad determinada, y éstas al tener contacto con el agua reducen su vida útil. Los objetivos de esta tesis son determinar la profundidad de penetración de agua bajo presión bajo la Norma Europea EN 12390 – 8 y la resistencia a la compresión bajo la Norma Técnica Peruana NTP 339.034; para f

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Sperlich, Dennis [Verfasser]. "Search for the production of a single excited b quark in the Wt final state with a single lepton in pp collisions at sqrt s = 13 TeV with the ATLAS detector / Dennis Sperlich." Berlin : Humboldt-Universität zu Berlin, 2021. http://nbn-resolving.de/urn:nbn:de:kobv:11-110-18452/24063-4.

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Liu, Chia-Yu, and 劉家佑. "The Properties of Composite Solders of Sn-3.0 wt.% Ag- 0.5 wt.% Cu alloy Added with Sn-10.0 wt.% Cu alloy." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2q7d46.

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Chan, Kun-Chieh, and 詹琨傑. "Thermal behavior, microstructure and mechanical property of the Bi-2.5 Ag added with 1.0 wt. % In, Sb and Sn." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/62905362341607289756.

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碩士 國立中央大學 機械工程學系在職專班 105 The motivation of this thesis is to modify the solder joints strength issue when Bi-2.5Ag soldered with Cu pad of ball grid array (BGA) with addition of 1.0 wt.% In, Sb and Sn. Subsequently the melting behavior, microstructure, interface microstructure and mechanical properties of ternary alloys have been discussed. The thermal analysis shown that, Bi-2.5Ag has a endothermic reaction at 262.2 ℃. After adding of 1.0 wt.% In and Sn, low temperature Bi-In phase (109.5 ℃) and Bi-Sn phase (138.8 ℃) are appeared separately. However after adding of 1.0wt.% Sb, the

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Chou, Yu-Cheng, and 周宇正. "The study of spinodal decomposition and ordering reaction in a hyper-eutectoid steel with a 1.0 wt% carbon content." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/e779g5.

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碩士 國立臺灣科技大學 機械工程系 106 High carbon steel has high strength, hardness, elastic limit and fatigue limit after proper heat treatment, and is suitable for tool steel. Phase transformations play an important role on the high carbon steel. We have studied the phase transformations of a high-carbon steel with 1.0 wt.% C. The methodology for the processes of the steel includes heating the steel samples to high temperature, 1000℃, and cooling to room temperature via furnace cooling, air cooling, water quenching and liquid nitrogen quenching. We have discovered similar curves showing signific

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Książki na temat "Wt 100"

C, Brocklehurst J., Tallis Raymond, and Fillit Howard, eds. Textbook of geriatric medicine and gerontology. 4th ed. Churchill Livingstone, 1992.

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S, Rai G., and Mulley Graham P, eds. Elderly medicine: A training guide. 2nd ed. Churchill Livingstone/Elsevier, 2007.

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1936-, Hazzard William R., and Halter Jeffrey B, eds. Hazzard's geriatric medicine and gerontology. 6th ed. McGraw-Hill Medical Pub. Division, 2009.

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C, Chop Walter, and Robnett Regula H, eds. Gerontology for the health care professional. 2nd ed. Jones and Bartlett Publishers, 2010.

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J, Ham Richard, ed. Primary care geriatrics: A case-based approach. 5th ed. Mosby Elsevier, 2007.

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G, Ouslander Joseph, and Abrass Itamar B, eds. Essentials of clinical geriatrics. 3rd ed. McGraw-Hill, Inc., Health Professions Division, 1994.

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G, Ouslander Joseph, and Abrass Itamar B, eds. Essentials of clinical geriatrics. 4th ed. McGraw-Hill, Health Professions Division, 1999.

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G, Ouslander Joseph, and Abrass Itamar B, eds. Essentials of clinical geriatrics. 5th ed. McGraw-Hill, 2004.

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A, Parks Jennifer, and Waymack Mark H, eds. Ethics, aging, and society: The critical turn. Springer Pub. Co., 2011.

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Current Diagnosis and Treatment: Geriatrics 2E. McGraw-Hill Education / Medical, 2014.

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Części książek na temat "Wt 100"

Wie-Addo, G., A. H. Jones, S. Palmer, V. Starinieri, J. Renshaw, and P. A. Bingham. "Reformulating Ceramic Body Composition to Improve Energy Efficiency in Brick Manufacture." In Springer Proceedings in Energy. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_32.

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AbstractThe influence of inorganic minerals (colemanite and nepheline syenite) as additives for sustainable clay brick manufacture has been examined. Each additive was added at 4 wt% to 96 wt% brick clay and samples were fired to 950 °C and 1040 °C and then compared with samples of 100% brick clay. Multiple analytical techniques (X-ray fluorescence, dilatometry, boiling water absorption, volumetric shrinkage, and mercury porosimetry) were used for analysis. Dilatometry shows that the additives influenced the temperature at which shrinkage began and the extent of that shrinkage. The use of cole

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Prudnikov, V., A. Granovsky, M. Prudnikova, and H. R. Khan. "Resistivity, Magnetoresistance and Hall Effect in Co(100-x) (CuO)x(10≤ x≤ 70 wt.%) Composites." In Itinerant Electron Magnetism: Fluctuation Effects. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5080-4_22.

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Calvert, Leanne. "“I Am Friends Wt You & Do Entertain No Malice”: Discord, Disputes and Defamation in Ulster Presbyterian Church Courts, c. 1700–1838." In Law and Religion in Ireland, 1700-1970. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74373-4_8.

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Yang, Wonseok, Young-Ok Yoon, Shae K. Kim, Hyun Kyu Lim, and Do Hyang Kim. "Effects of Heat Treatment on Bio-Corrosion Properties of Mg-Zn-xMn (x= 0.5, 1.0, and 1.5 wt.%) Alloys as Biodegradable Materials." In Magnesium Technology 2015. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48185-2_76.

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dos Santos, T. C., P. A. Carísio, A. P. S. Martins, et al. "Effect of Fine Aggregates and Test Settings on the Self-sensing Response of Cement-Based Composites with Carbon Nanotubes as Conductive Filler." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_21.

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AbstractCement-based self-sensing composites with carbon nanotubes (CNT) have attracted attention due to their multifunctional properties and great potential for their application in the smart monitoring of concrete structures. In this study, the self-sensing properties of one paste and three mortars containing 0.50 and 0.75 wt% of CNT, and 1.5 and 1.0 sand/cement ratio were investigated, aiming to evaluate their impact on the piezoresistive response of the composites. The inclusion of sand in the cement paste with CNT led to a reduced gauge factor and a higher electrical noise response. The i

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Hao X.J., Yin W., Strangwood M., Peyton A.J., Morris P.F., and Davis C.L. "Modelling and Measurement of Decarburisation of Steels Using a Multi-frequency Electromagnetic Sensor." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-896-0-86.

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Decarburisation of high carbon steel has been simulated, using composite samples comprised of a 316 stainless steel (paramagnetic) core and a surrounding tube of ferritic steel (ferromagnetic) with thicknesses between 100 and 600 &mu;m, for determining the potential for on-line measurement during steel processing. Decarburization samples have also been generated, for off-line measurements, by heat treatment of an Fe-0.8 wt% C steel for various times in air at 1000&ndash;1200&deg;C. A multi-frequency (10&ndash;106Hz) electromagnetic sensor was used to determine variations in ind

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Chizoo, Esonye. "Alkali Homogeneous Catalyzed Methyl Ester Synthesis from Chrysophyllum albidum Seed Oil: An Irreversible Consecutive Mechanism Approach." In Alkaline Chemistry and Applications. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.95519.

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This chapter considers the application of alkaline (NaOH) based catalyzed methanolysis of seed oil from Chrysophyllum albidum (African star apple) as a viable route for synthesis of methyl esters (biodiesel). Specific consideration was given to the chemical kinetics and thermodynamics of the irreversible consecutive mechanism of the process on the basis of higher application of methanol/molar ratio (>3:1) as a feasible approach for generating required data for commercial scale-up of the process. The application of power rate law revealed that second order model was the best fitted model on

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Kharrat, Ahmed, Karim Gasmi, Mohamed Ben Messaoud, Nacéra Benamrane, and Mohamed Abid. "Medical Image Classification Using an Optimal Feature Extraction Algorithm and a Supervised Classifier Technique." In Advances in Abstract Intelligence and Soft Computing. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2651-5.ch004.

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A new approach for automated diagnosis and classification of Magnetic Resonance (MR) human brain images is proposed. The proposed method uses Wavelets Transform (WT) as input module to Genetic Algorithm (GA) and Support Vector Machine (SVM). It segregates MR brain images into normal and abnormal. This contribution employs genetic algorithm for feature selection which requires much lighter computational burden in comparison with Sequential Floating Backward Selection (SFBS) and Sequential Floating Forward Selection (SFFS) methods. A percentage reduction rate of 88.63% is achieved. An excellent

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Seto, Takayuki, Yu Yamato, Ryota Sekine, and Eiji Izawa. "Chapter 26: Geology of the Hishikari Gold Deposit, Kagoshima, Japan." In Geology of the World’s Major Gold Deposits and Provinces. Society of Economic Geologists, 2020. http://dx.doi.org/10.5382/sp.23.26.

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Abstract The bonanza-grade, low-sulfidation epithermal Hishikari gold deposit is located in the Plio-Pleistocene volcanic area of southern Kyushu, Japan. The concealed veins were discovered in 1981 and the mine has since produced 5.462 million metric tons (Mt) of ore averaging 44.3 g/t Au (242 t Au) from 1985 to the end of 2018, at which time reserves were 7.98 Mt at 20.9 g/t Au. The Hishikari deposit consists of the Honko, Sanjin, and Yamada ore zones, which occur in a NE-trending area 2.8 km long and 1.0 km wide. The veins are hosted by basement sedimentary rocks of the Cretaceous Shimanto S

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Nikzad Navid and Hamidi Amir. "Effect of Cement Type on the Mechanical Behavior of Fiber Reinforced sands." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-601-9-350.

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Early attempts to increase the soil strength by mixing it with other materials date back 3000 years ago in construction of ziggurats when the soil was mixed with plant roots. Coupled usage of cement and fiber in soil, however, refers to more recent years. Reinforcement with cement and fiber is one of the soil improvement methods for increase in bearing capacity and reduction of settlements. Cemented soils are usually found naturally, however, artificially cemented samples are widely used in the laboratory to investigate deformation and shear strength characteristics due to the limitations in u

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Streszczenia konferencji na temat "Wt 100"

Gross, Alexander, Haofei Sun, and Jing Liu. "Corrosion of Cr-Alloyed Steels in Supercritical CO2-Saturated Brine Water." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20809.

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Abstract In the context of urgent efforts to reduce global carbon emissions, carbon capture, utilization, and storage (CCUS) has gained prominence. Tubing and casing steels are vital materials of construction (MOC) in CCUS systems, especially in supercritical CO2 (s-CO2) environments. However, the understanding of the corrosion behavior of these steels under s-CO2 conditions is limited, which presents integrity challenges. Immersion experiments were conducted with steels containing varying chromium (Cr) levels (0.5 wt% to 16.5 wt%), including P110, P91, and SS 316. These steels were exposed to

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Rajan, Vaidyanath B., and Gary S. Was. "Stress Corrosion Cracking of Controlled-Purity Inconel 600 Type Alloys in Sulfur Containing Solutions." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86252.

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Abstract Intergranular stress corrosion cracking susceptibility of controlled purity Inconel 600 type alloys in 0.017 M sodium tetrathionate solution at ambient temperature was investigated. Two heats of alloys, one containing 0.028 wt%C and the other containing 0.023 wt%C and 0.035 wt%P were thermally treated to produce a range of Cr depletion profiles with different Cr minima and P segregation at the grain boundary. Constant extension rate tests indicated that 100% intergranular cracking in this solution is observed only if the Cr level at the grain boundary is below 6 wt%, and 100% transgra

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Jackson, Tracey S., Patrick E. Martin, and Rhonda Posey. "Surface Response Design to Study the Effect of Low Oxygen Levels on Carbon Dioxide Corrosion Environments." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09574.

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Abstract The goal of this study was to simulate oxygen (O2) contamination and determine its impact on an aqueous carbon dioxide (CO2) environment. The study used a quadratic model in a surface response experimental design to determine the effects of oxygen and five other variables on the corrosion of carbon steel in a CO2 environment. Surface response design was used to optimize the number of tests needed to determine statistical significance of the six experimental factors. Temperature (25 to 66°C), sodium chloride composition (0.1 to 1.0 wt%), brine-hydrocarbon ratio (50 to 75 wt%), electrod

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Bronson, Arturo, Charles Odegard, Rene Chavarria, Patrick Rodriguez, Garry Warren, and Rajiv Hadkar. "The Contribution of Capacitive Charging During Corrosive Wear Measurements." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97273.

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Abstract The capacitances of passivated electrodes were investigated to aid in explaining the effect of capacitive discharging during scribing of rotating cylindrical electrodes. In scribing experiments, a capacitive current is associated with the transient current response which results from removing the passive film. The effective capacitance of the electrodes were acquired by using triangular sweep voltammetry (TSV), galvanostatic double pulse technique (GDP), and electrochemical impedance spectroscopy (EIS) conducted on Fe -16 wt%Ni -16 wt%Cr and Fe - 25 wt%Ni - 25 wt%Cr alloys immersed in

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Ramgopal, T., and S. Amancherla. "Role of Methanol on Pitting of SS316 - Preliminary Results." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04240.

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Abstract Localized corrosion of stainless steel particularly SS316 is not totally understood in aqueous systems. However, localized corrosion of SS 316 in non-aqueous solutions is even less understood or explained. The present effort is aimed at developing an understanding of localized corrosion of stainless steel in methanolic solutions. Potentiodynamic polarization curves on SS316 were performed in methanol-water-1M LiCl at different methanol concentrations ranging from (0 - 99 wt%). The pitting potential decreased from +350 mV SCE to -100 mV SCE as the concentration of methanol increased fr

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Griffiths, A. J., and A. Turnbull. "Preliminary Investigation of Hydrogen Uptake and Cracking in 22 Cr Duplex Stainless Steel under Galvanic Coupling Conditions." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96072.

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Abstract Tests have been conducted to evaluate the performance of 22 Cr duplex stainless steel coupled to carbon-steel in acid brine environments at 80 °C with and without H2S. Measurement of coupled potentials and currents were made in parallel with a detailed evaluation of the effects of H2S, pH and coupling current on hydrogen uptake. Hydrogen contents generated under coupling conditions are large, of the order of 100 ppm (wt.) (total hydrogen). At low charging currents, hydrogen uptake was independent of pH and H2S and proportional to the square root of the charging current density, i½. As

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Holzleitner, S., G. Mori, H. Falk, and S. Eglsaeer. "Electrochemical and SCC Behavior of Highly Alloyed Austenitic Stainless Steels in Different Chloride Containing Media." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07477.

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Abstract Potentiodynamic measurements, Slow Strain Rate Tests (SSRT) and Constant Load Tests (CLT) were executed on austenitic stainless steels to investigate chloride induced stress corrosion cracking (CISCC). Tests were conducted in boiling 43 wt% calcium chloride (CaCl2) and 45 wt% magnesium chloride (MgCl2) solutions. For the tests one CrNiMo and five CrMnN were chosen. To get mechanical reference values glycerin was used at SSR test as inert medium. Additionally influences of chloride concentration and temperature were investigated in potentiodynamic measurements and slow strain rate test

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Arzola-Peralta, Sergio, Juan Genesca-Llongueras, Juan Mendoza-Flores, and Ruben Duran-Romero. "Corrosion Behavior of X70 Pipeline Steel in H2S Containing Solutions." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04627.

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Abstract The present work describes the corrosion behavior of X70 pipeline steel immersed in H2S solutions. Electrochemical techniques such as Linear Polarization Resistance (LPR), Electrochemical Impedance Spectroscopy, EIS and Electrochemical Noise, EN, were used to characterize the electrochemical behavior of X70 pipeline steel in a 3 wt% NaC1 solution with several hydrogen sulfide (H2S) concentrations; 0, 100, 650 an 2550 ppm. Electrochemical Noise Measurements, ENM, have been carried out on this system in order to identify the type of corrosion. Electrochemical parameters like, Polarizati

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Otsuka, N., Y. Kawahara, Y. Fukuda, and T. Hosoda. "Laboratory Corrosion Tests for Simulating Fireside Wastage of Superheater Materials in Waste Incinerators." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99089.

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Abstract Laboratory corrosion tests were performed to clarify the effects of relative amounts of fused salts in tube deposits on corrosion rates of superheater materials in WTE plants. All test exposures were at 550°C and of 100 hour duration. The nine synthetic ashes used as corrodents consisted of mixtures of chlorides, sulfates and oxides. The test materials were alloy steel T22, stainless steels TP347H, TP310HCbN, and alloys HR11N and 625. The gas atmosphere consisted of 500 to 3000 ppm HCl-30ppm SO2-10%O2-10%CO2-20%H2O-bal.N2. Generally, the relative amount of fused salts in non-fused ash

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Arzola-Peralta, Sergio, Juan Genesca-Llongueras, Juan Mendoza-Flores, and Ruben Duran-Romero. "Electrochemical Study on the Corrosion of X70 Pipeline Steel in H2S Containing Solutions." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03401.

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Abstract This work presents electrochemical data measured during the corrosion of X70 pipeline steel immersed in aqueous environments containing dissolved H2S. Four different conditions were evaluated: a 3wt% NaCl solution, 3wt% NaCl + 100 ppm H2S, 3wt% NaCl + 650 ppm H2S and a 3 wt% NaCl solution saturated with H2S. The following electrochemical techniques were used in this assessment at stationary conditions: Linear Polarization Resistance (LPR) and Electrochemical Impedance Spectroscopy (EIS). All this information is meant to gain understanding of sour corrosion process in hydrocarbon trans

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Raporty organizacyjne na temat "Wt 100"

Wilkins, Justin, Andrew McQueen, Joshua LeMonte, and Burton Suedel. Initial survey of microplastics in bottom sediments from United States waterways. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42021.

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Given the reported extent of microplastics in the aquatic environment, environmentally relevant exposure information for sediments dredged by the US Army Corps of Engineers will lend context to the risks posed by this contaminant during dredging. We measured the occurrence, abundance, and polymer composition of microplastics in sediments collected from nine dredged waterways and two non-dredged reference areas. The number of particles in sediment samples ranged from 162 to 6110 particles/kg dry wt., with a mean of 1636 particles/kg dry wt. Fragments were the most prevalent shape observed among

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Desbarats, A. J., and J. B. Percival. Hydrogeochemistry of mine tailings from a carbonatite-hosted Nb-REE deposit, Oka, Quebec, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331256.

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Environmental impacts associated with the mining of carbonatite deposits are an emerging concern due to the demand for critical metals. This study investigates the chemistry of tailings seepage at the former Saint Lawrence Columbium mine near Oka, Québec, Canada, which produced pyrochlore concentrate and ferroniobium from a carbonatite-hosted Nb-REE deposit. Its objectives are to characterize the mineralogy of the tailings and their pore water and effluent chemistries. Geochemical mass balance modeling, constrained by aqueous speciation modeling and mineralogy, is then used to identify reactio

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Baten, Bayezid, Matthew Gombeda, and Nishant Garg. Utilizing a Particle-packing Approach for an Illinois-specific, Nonproprietary, Low-shrinkage UHPC. Illinois Center for Transportation, 2024. http://dx.doi.org/10.36501/0197-9191/24-021.

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Ultra-high-performance concrete (UHPC) represents the next generation of concrete, with a strength 3-4 times greater than traditional concrete (100-120 MPa as opposed to 30-40 MPa). However, most of the commercial UHPC mixes are proprietary and expensive. In this project, we document the development of nonproprietary, cost-effective UHPC mixes primarily using locally sourced or pre-qualified materials in Illinois. The research utilizes the modified Anderson and Andreasen packing model to establish a new parameter: “packing factor” that has a significant influence on the design and performance

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