Results 11 to 20 of about 9,696 (146)

Automatic classification of kidney stone components based on smartphone microscopy and the GoogLeNet model [PDF]

BMC Urology
Background To develop an automated classification system for urinary stone composition by integrating smartphone-based microscopic imaging (TIPSCOPE) with the GoogLeNet architecture, with the goal of enabling rapid, accurate, and cost-effective analysis ...
Yuxuan Du, Yanbing Liang, Ping Li, Yangang Xu, Xingshu Zhen, Liuqiang Li, Mei Huang, Yifei Zhan, Guanyang Li, Zichi Wu, Chan Hiu Fung Anson, Chenyu Zhou, Ayizeba Aimaierjiang, Jiaqi Chen, Kaiyue Tang, Yaochuan Guo, Zhiyuan Guo, Jun Bian, Dehui Lai   +18 more
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Bis(tetramethylammonium) oxalate monohydrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
In the crystal structure of the title hydrated salt, 2C4H12N+·C2O42−·H2O, the two independent cations, the anion and the water mol­ecule all lie on special positions of m site symmetry. In both cations, the mirror plane passes through the nitrogen atom and two methyl groups; in the anion, the mirror plane passes through two carbon and two oxygen atoms.
Yun-Xia Yang, Qi Li, Seik Weng Ng
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A new binuclear Ni(II) complex, an effective A3-coupling catalyst in solvent-free condition

Heliyon, 2023
A newly binuclear nickel(II) complex, [Ni2(en)4(ox)](ClO4)2 (1) (where en = ethylenediamine, and ox = oxalate), has been isolated from a reaction of NiCl2·6H2O, ethylenediamine, ammonium oxalate and sodium perchlorate in water and its crystal structure ...
Ayda Sheykhi, Ali Akbar Khandar, Jan Janczak, Mojtaba Amini   +3 more
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Ambient air particles: The use of ion chromatography and multivariate techniques in the analysis of water-soluble substances [PDF]

Journal of the Serbian Chemical Society, 2021
Seventeen water-soluble substances (of sodium, ammonium, potassium, magnesium, calcium, formate, methanesulfonate, glyoxylate, chloride, nitrite, nitrate, glutarate, succinate, malate, malonate, sulfate and oxalate) in 94 samples of particle matter in ...
Todorović Žaklina N., Radulović Jelena M., Sredović-Ignjatović Ivana D., Ignjatović Ljubiša M., Onjia Antonije E.   +4 more
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Redetermination of ammonium oxalate oxalic acid dihydrate

Acta Crystallographica Section E Structure Reports Online, 2006
The crystal structure of the triclinic form of the title compound, NH4+·C2HO4−·C2H2O4·2H2O, has been redetermined, providing a significant increase in the precision of the derived geometric parameters. The asymmetric unit comprises an ammonium cation, an oxalate anion, half each of two oxalic acid mol­ecules, each disposed about a centre of inversion ...
PORTALONE, Gustavo, COLAPIETRO M.
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Bis(tetraethylammonium) oxalate dihydrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
The title compound, 2C8H20N+·C2O42−·2H2O, synthesized by neutralizing H2C2O4·2H2O with (C2H5)4NOH in a 1:2 molar ratio, is a deliquescent solid. The oxalate ion is nonplanar, with a dihedral angle between carboxylate groups of 64.37 (2)°. O—H...O hydrogen bonds of moderate strength link the O atoms of the water molecules and the oxalate ions into rings
Timothy J. McNeese, Robert D. Pike
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Fourier transform infrared spectroscopy for analysis of kidney stones [PDF]

Investigative and Clinical Urology, 2018
Purpose: To compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. Materials and Methods: Kidney stones collected between June and October 2015 were simultaneously analyzed ...
Aysha Habib Khan, Sheharbano Imran, Jamsheer Talati, Lena Jafri   +3 more
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A Study of Phosphate Solubilizing Capacity by Penicillium Aurantiogriseum under Different Carbon and Nitrogen Resources [PDF]

E3S Web of Conferences, 2022
Phosphate-solubilizing fungi have been successfully applied to the release of phosphorus from insoluble tricalcium phosphate. A phosphate-solubilizing fungi Penicillium aurantiogriseum was isolated and investigated the phosphorus solubilizing capacity ...
Hu Jun, Wang Liyan, Zhang Liangliang, Gao Hongjian, Tian Da   +4 more
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Precipitation of Ferrous Oxalate from Ferrous Ammonium Sulfate in Oxalic Acid Solution

Processes, 2022
A kinetic study was conducted experimentally for the precipitation of ferrous oxalate. The ferrous oxalate, in the form of dihydrate (FeC2O4·2H2O), was produced by the acidic dissolution of ferrous ammonium sulfate (Fe(NH4)2(SO4)2) in an aqueous solution of oxalic acid, and then precipitated by nucleation and particle growth from supersaturated ...
Su In Lee, Hye Rim Kim, Jae Kwan Park, Wonzin Oh, Jeongju Kim, Chorong Kim, Junghyun Lee, Ki-Chul Kim, Byung-Chul Lee   +8 more
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Extraction and Characterization of Pectin from Dragon Fruit (Hylocerens polyrhizus) Peel Using Different Concentration of Ammonium Oxalate

Maǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2018
The study was focused on the red dragon fruit (Hylocerens polyrhizus) peel which can be used as a source of pectin .The physicochemical properties were studied moisture, protein, fat, ash, total soluble solid TSS, pH and titratable acidity TA .Using ...
Alia Z. Hashim
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