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Petrogenesis of REE-rich two-mica granite from the Indosinian Xiekeng pluton in South China Block with implications for REE metallogenesis
Published 2025-01-01“…The rock features high contents of SiO2 (71.3–77.73 wt%), K2O (4.42–5.62 wt%), K2O/Na2O (1.36–1.87), and with an A/CNK value of 1.11–1.27, a differentiation index (DI) of 90.28–94.47, zircon saturation temperatures of 780°C–806°C, and K/Rb, Nb/Ta, and Zr/Hf ratios of 8.40–11.04, 2.38–9.24, and 25.42–35.37, respectively. …”
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Adsorpsi Congo Red dan Remazol Red oleh Silika Pasir Pantai Panjang dengan Metode Spektroskopi
Published 2024-12-01“…Based on the experiments, the results were 1) The synthesis of silica from Bengkulu beach sand was carried out through the purification of the sample, the potassium silicate preparation (K2SiO3) by the alkali fussion method, gel making, and the silica gel preparation (SiO2). …”
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Adsorption of Oxalic Acid onto Hematite: Application of Surface Potential Measurements
Published 2007-07-01“…Thus, for the two protonation steps of the surface sites, the thermodynamic equilibrium constants were log K 1 = 7.1 ± 0.4 and log K 2 = 5.2 ± 0.4, respectively. Two assumptions were tested with regard to the adsorption equilibrium constant, i.e. the charge of the surface complex is exposed to the inner surface potential, ψ 0 , or to the outer surface potential, ψ d . …”
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A Bayesian Network Approach to Causation Analysis of Road Accidents Using Netica
Published 2017-01-01“…By taking Adelaide Central Business District (CBD) in South Australia as a case, the Bayesian network structure was established by integrating K2 algorithm with experts’ knowledge, and Expectation-Maximization algorithm that could process missing data was adopted to conduct the parameter learning in Netica, thereby establishing the Bayesian network model for the causation analysis of road accidents. …”
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هيئة الاحتساب ودورها الرقابي في رعاية المصالح وبناء المجتمع
Published 2019-04-01Get full text
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Posterior Corneal Asphericity Effect on Postoperative Astigmatism after EDOF Intraocular Lens Implantation in Cataract Patients
Published 2021-01-01“…We included data of the Q value, Kmax, K1, K2, astigmatism AL, and ACD. We performed a vectorial analysis to calculate the astigmatic vectors. …”
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General encoding of canonical k-mers
Published 2023-09-01“…., a mapping to the interval [0, σk/2−1]. The approach is introduced for canonicalization under reversal and extended to canonicalization under reverse complementation. …”
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Evaluation of Biological Treatments for the Adsorption of Phenol from Polluted Waters
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Photoinduced Synthesis of New Diisochromenochromen-4-ones and Their Antimicrobial Activities
Published 2012-01-01“…The later compounds are obtained from the O-alkylation of the suitable 3-hydroxy-2-aryl-4H-chromen-4-one 1a-1e with 4,4′-bischloromethyl-diphenyl in dry acetone, anhydrous K2CO3, and PTC (Bu4N+I−) under refluxing conditions. …”
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Activity and diffusivity of oxygen in the liquid dilute BixSb1-x solutions
Published 2018-01-01Get full text
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Applying Acupuncture as Part of Multidisciplinary Treatment for Locked-in Syndrome: A Case Report
Published 2025-02-01“…Acupuncture points used included LR3, SP3, SP4, K2, SP6, SP8, SP9, LI4, LI11, L10, GV20, EXTRA-1, and EXTRA-8. …”
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Green Synthesis of Calcium/Iron-Layered Double Hydroxides-Sodium Alginate Nanoadsorbent as Reactive Barrier for Antibiotic Amoxicillin Removal from Groundwater
Published 2023-01-01“…We applied many kinetic models to the sorption kinetic data where the pseudo-second-order model (R2=0.9924) was used to interpret the gained data at a rate constant K2 of (0.0077) g/(mg. min) at 200 rpm. Moreover, the adsorption calculated amount reached the experimentally required value and isotherm data best fitted the Langmuir model with R2 (≥0.9486) than the Freundlich model. …”
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Preparation and Thermal Properties of Eutectic Hydrate Salt Phase Change Thermal Energy Storage Material
Published 2018-01-01“…In this study, a new cold storage phase change material eutectic hydrate salt (K2HPO4·3H2O–NaH2PO4·2H2O–Na2S2O3·5H2O) was prepared, modified, and tested. …”
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OPTIMASI LAHAN DENGAN SISTEM TUMPANG SARI JAGUNG MANIS (Zea mays saccharata, Sturt) DAN KANGKUNG SUTRA (Ipomea reptans) DI PEKANBARU
Published 2018-04-01“… Research conducted experiments using a completely randomized design environment with three replications, and design of treatment that is the time of planting silk kale as secondary crops to the cultivation of sweet corn (K) consisting of: k1 = planting at the same time; k2 = time of planting silk kale 1 week after planting sweet corn; k3 = time of planting silk kale 2 weeks after planting sweet corn; k4 = time of planting silk kale 3 weeks after planting sweet corn; K5 = single planting sweet corn planting time = k1; k6 = single silk kale planting time = k1. …”
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Benzene Oxidation on Boron-Doped Diamond Electrode: Electrochemical-Impedance Study of Adsorption Effects
Published 2012-01-01“…Benzene oxidation at a boron-doped diamond anode in 0.5 M K2SO4 aqueous solution is studied by cyclic voltammetry and electrochemical impedance spectroscopy. …”
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