A5015823480- Catalysis and Oxidation Reactions
- Catalytic Processes in Materials Science
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Meat and Animal Product Quality
- Polyoxometalates: Synthesis and Applications
- Spectroscopy and Chemometric Analyses
- Discourse Analysis and Cultural Communication
- Nanomaterials for catalytic reactions
- Sociopolitical Dynamics in Russia
- Animal Behavior and Welfare Studies
- Gas Sensing Nanomaterials and Sensors
- Natural product bioactivities and synthesis
- Crystallography and molecular interactions
- Metal-Organic Frameworks: Synthesis and Applications
- Luminescence Properties of Advanced Materials
- Polymer Foaming and Composites
- Vanadium and Halogenation Chemistry
- biodegradable polymer synthesis and properties
- Network Security and Intrusion Detection
- Plant-derived Lignans Synthesis and Bioactivity
- Agricultural pest management studies
- Carbon dioxide utilization in catalysis
- Traditional and Medicinal Uses of Annonaceae
- Advancements in Solid Oxide Fuel Cells
Air Force Medical University
2025
Nanjing University of Chinese Medicine
2022-2024
Xinyang College of Agriculture and Forestry
2024
Guangdong Pharmaceutical University
2024
BASF (United States)
2021-2023
Agriculture and Agri-Food Canada
2021-2023
Beijing Technology and Business University
2022-2023
University of Guelph
2023
City, University of London
2023
State Grid Corporation of China (China)
2022
Palladium-exchanged zeolites are candidate materials for passive NOx adsorption in automotive exhaust aftertreatment, where mononuclear Pd cations behave as precursors to the purported sites. Yet, structures of zeolite lattice binding sites capable stabilizing Pd2+ ions, and mechanisms that interconvert agglomerated PdO domains into ions during redispersion treatments, remain incompletely understood. Here, we use a suite spectroscopic methods quantitative site titration techniques...
Current Visual Language Models (VLMs) show impressive image understanding but struggle with visual illusions, especially in real-world scenarios. Existing benchmarks focus on classical cognitive which have been learned by state-of-the-art (SOTA) VLMs, revealing issues such as hallucinations and limited perceptual abilities. To address this gap, we introduce IllusionBench, a comprehensive illusion dataset that encompasses not only classic illusions also scene illusions. This features 1,051...
Recently, there has been significant progress in automatic pain assessment based on facial expression analysis. However, the performance of remains unsatisfactory, due to a lack analysis local pain-related action units and emotional ambiguity. In particular, ambiguous expressions complicate estimation pain. It is argued that certain regions related should receive more attention while estimating intensities. Based this, we propose multi-task hybrid Conv-Transformer method for assessment,...
Pd-loaded FER and SSZ-13 zeolites as low-temperature passive NOx adsorbers (PNA) are compared under practical conditions. Vehicle cold start exposes the material to CO a range of concentrations, necessitating systematic exploration effect on performance isolated Pd ions in PNA. The NO release temperature both decreases gradually with an increase concentration from few hundred thousand ppm. This beneficial results local nano-"hot spot" formation during oxidation. Dissimilar Pd/SSZ-13,...
Hydrothermal reaction of lacunary [(PO4)W11O35]7- with rhodium acetate dimer yields the novel dirhodium-substituted Keggin anion, [(PO4)W11O35{Rh2(OAc)2}]5- (1). An X-ray structure determination guanidiunium salt dimethyl sulfoxide derivative 1 confirms deduced from proton and tungsten NMR spectroscopy. Oxidation to an unstable RhII,III derivative, synthesis other polytungstate analogs is possible. The tetrabutylammonium exhibits modest catalytic reactivity for cyclopropanation.
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTRhodium−Carbon Bond Formation in Aqueous Solution. Synthesis, Structure, and Reactivity of the Functionalized Heteropolytungstates, [XW11O39RhCH2COOH]5,6- (X = P, Si)Xinyi Wei, Michael H. Dickman, T. PopeView Author Information Department Chemistry, Box 571227 Georgetown University, Washington, D.C. 20057-1227 Cite this: J. Am. Chem. Soc. 1998, 120, 39, 10254–10255Publication Date (Web):September 19, 1998Publication History Received24 March...
The heteropolyanion [PW11O39RhCl]5- (1-Cl) was synthesized by hydrothermal reaction of [PW11O39]7- and RhCl3 at 150 °C for 20 h. tetramethylammonium salt 1-Cl characterized elemental analysis, 31P 183W NMR, solution molecular weight determination ultracentrifugation (found 2744 ± 63, calcd 2816). cyclic voltammogram shows an irreversible reduction wave −0.45 V vs Ag/AgCl, controlled potential −0.5 generates the dimeric metal−metal bonded species [(PW11O39Rh)2]10- (2). composition structure 2...
Selected chemical compounds of five faba bean (FB) cultivars; Snowdrop (low tannin), Taboar (high Snowbird Fabelle vicine & convicine), and Malik tannin) that were grown in North America (3 production years) determined. The effect short-term germination (24 h, 48 72 h) on the levels phytic acid, vicine/convicine (v/cv), oligosaccharides, total phenolics evaluated. On average, FB contained 2% acid there was no difference between 5 cultivars. presented lowest level v/cv 1 0.4 mg/g,...
Ceria nanoparticles supported on alumina have found wide applications for various catalytic reactions, especially in contact with precious metals. We discovered that treatment of these catalysts at temperatures between 750 and ~1,000 ºC under the flow CO NO presence steam (reactive aging reducing atmosphere) leads to dispersion ceria creates a novel architecture high density (up 10 wt%) atomically dispersed, ultra small CexOy clusters densely covering alumina, as confirmed by XPS, FTIR...
<p>Pd-loaded FER and SSZ-13 zeolites as low-temperature passive NOx adsorbers (PNA) are compared under practically relevant conditions. Vehicle cold-start exposes the material to CO a range of concentrations, necessitating systematic exploration effect on performance isolated Pd ions for PNA. NO release temperature both decreases gradually with increase concentration from few hundred thousand ppm. This beneficial results local nano-“hot spots” formation during oxidation. Dissimilar...
The increase in market demand and economic value of Canadian pork primal cuts has led to a need assess advanced technologies capable measuring quality traits. Fat lean composition were measured using Tellspec near-infrared (NIR) spectroscopy device predict the belly fat iodine (IV) loin intramuscular (IMF) content 158 primals 419 chops. calibration model revealed 90.6% 88.9% accuracy for NIR saturated fatty acids (SFA) IV, respectively, fat. other an 66.3–86.1%. Using IMF reported lower...
Abstract Pd‐loaded FER and SSZ‐13 zeolites as low‐temperature passive NOx adsorbers (PNA) are compared under practical conditions. Vehicle cold start exposes the material to CO a range of concentrations, necessitating systematic exploration effect on performance isolated Pd ions in PNA. The NO release temperature both decreases gradually with an increase concentration from few hundred thousand ppm. This beneficial results local nano‐“hot spot” formation during oxidation. Dissimilar...
Ceria nanoparticles supported on alumina have low activity for industrially relevant NO reduction by CO. We discovered that treatment of these catalysts at temperatures between 750 and ~1,000 ºC under the flow CO in presence steam, which typically leads to catalyst deterioration sintering, fact, dispersion ceria into high density (up 10 wt%) fully exposed Ce atoms mostly +3 oxidation state. characterize them with XPS, FTIR HAADF-STEM imaging. Their changes surface, as evidenced XPS probe...
The objective of this study was to evaluate the performance different low-cost instruments measure pork colour in comparison Minolta spectrophotometers and industry subjective standards. Canadian standards commercial meat (252 loin chops 46 tenderloins) were measured using two (CM 700D) spectrophotometers, four Nix sensors (two Pro II QC), Spectro devices 1 Pro). Using Bland-Altman plots, all hand-held revealed similar on coordinates, except for II, which had more variability a* value, b*...
A novel macrolactam named oxalactam (1), three known dipeptides (2–4) as well other alkaloids (5–7) were obtained from the endophytic fungus Penicillium oxalicum, which was derived tuber of Icacina trichantha (Icacinaceae). All chemical structures established based on spectroscopic data, methods, ECD calculations, and 13C-DP4+ analysis. Among them, (1) is a 16-membered polyenic bearing new skeleton 2,9-dimethyl-azacyclohexadecane core exhibited potent anti-Rhizoctonia solani activity with...
Thirteen novel polyoxygenated (9β-H)-pimarane derivatives, icacinolides A–G (1–7), oliviformislactones C–H (8–13), and two known analogs (14 15), were isolated from the leaves of Icacina oliviformis. Their structures constructed by spectroscopic analysis, chemical method, 13C NMR-DP4+ ECD calculation, single-crystal X-ray diffraction technology. Among them, compounds 1, 5, 7 first three examples bearing a rearranged 3-epi-17-nor-(9β-H)-pimarane carbon skeleton with unique...