A5109886828- Advanced Frequency and Time Standards
- Cold Atom Physics and Bose-Einstein Condensates
- Laser Material Processing Techniques
- Atomic and Molecular Physics
- Laser-induced spectroscopy and plasma
- Zeolite Catalysis and Synthesis
- Atomic and Subatomic Physics Research
- Advanced Chemical Physics Studies
- Advanced NMR Techniques and Applications
- Scientific Measurement and Uncertainty Evaluation
- Chemical Synthesis and Characterization
- Ocular and Laser Science Research
- Solid State Laser Technologies
- Metal and Thin Film Mechanics
- Laser-Matter Interactions and Applications
- Mesoporous Materials and Catalysis
- Particle physics theoretical and experimental studies
- Photorefractive and Nonlinear Optics
- Advanced Battery Technologies Research
- Metallurgy and Material Forming
- Advanced Surface Polishing Techniques
- Boron and Carbon Nanomaterials Research
- Advanced Fiber Laser Technologies
- Spectroscopy and Quantum Chemical Studies
- Lipid metabolism and biosynthesis
Jiangsu Yonggang Group (China)
2025
Wuhan Institute of Physics and Mathematics
2014-2024
Chinese Academy of Sciences
2014-2024
State Key Laboratory of Magnetism
2024
Yunnan University
2020-2024
Center for Life Sciences
2020-2024
Inner Mongolia University
2014-2023
Shaoxing University
2020
University of Jinan
2020
Yangtze University
2020
Abstract Fatty acids (FAs) are essential nutrients, but how they transported into cells remains unclear. Here, we show that FAs trigger caveolae-dependent CD36 internalization, which in turn delivers adipocytes. During the process, binding of to activates its downstream kinase LYN, phosphorylates DHHC5, palmitoyl acyltransferase CD36, at Tyr91 and inactivates it. then gets depalmitoylated by APT1 recruits another tyrosine SYK phosphorylate JNK VAVs initiate endocytic uptake FAs. Blocking...
Finding Al: The distribution of catalytically active sites over crystallographic positions in zeolites is not random but controlled by synthesis. For differently synthesized ZSM-5 samples, distinct 27Al resonances have been identified NMR spectroscopy. Shift calculations DFT show that the observed belong to Al different (see picture). Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z702628_s.pdf or from author. Please note:...
The Al siting in the ZSM-5 zeolite was investigated by (27)Al 3Q MAS NMR spectroscopy and QM/MM calculations. It found that occupation of framework T-sites concentration these are neither random nor controlled a simple rule. They both depend on conditions synthesis. At least 12 out 24 distinguishable occupied set samples. A partial identification sites is possible. calculated shielding values were converted to isotropic chemical shifts using experimental shift 60.0 ppm referenced aqueous...
Post-synthetic dealumination treatment is a common tactic adopted to improve the catalytic performance of industrialized zeolitic catalysts through enhancements in acidity and stability. However, among possible extra-framework aluminum (EFAL) species dealuminated zeolites such as Al3+, Al(OH)2+, AlO+, AlOOH, Al(OH)3, presence tri-coordinated EFAL-Al3+ species, which exhibit large quadrupolar effect due lack hydrogen-bonding was normally undetectable by conventional one- two-dimensional 1H...
Background: The global mortality rate for coronavirus disease 2019 (COVID-19) is 3.68%, but the critically ill patients as high 50%. Therefore, exploration of prognostic predictors with COVID-19 vital prompt clinical intervention. Our study aims to explore predictive value hematological parameters in prognosis severe COVID-19. Methods: Ninety-eight who were diagnosed at Jingzhou Central Hospital and Wuhan, Hubei Province, included this study. Results: median age was 59 [28–80] years; a good...
The effect of the presence Al−O−Si−O−Al and Al−O−Si−O−Si−O−Al sequences in ZSM-5 zeolite framework on local geometry AlO4− tetrahedra 27Al NMR parameters was investigated employing 3Q MAS spectroscopy DFT/MM calculations. an Al atom as a next-nearest (Al−O−Si−O−Al) next-next-nearest (Al−O−Si−O−Si−O−Al) neighbor can significantly affect both well isotropic chemical shift (up to 4 ppm). There is no systematic contribution or Al−O−(Si−O)2−Al chains shift, not even direction be predicted without...
We present a multistep method combining multispectroscopic experiments with DFT calculations to determine the complete Al distribution in silicon-rich zeolites, independent of presence Al–O–(Si–O)n–Al (n = 1, 2) sequences their frameworks. 29Si MAS NMR spectroscopy is employed confirm absence Al–O–Si–O–Al framework zeolites while 27Al 3Q and computations isotropic chemical shifts serve locations isolated atoms. The maximum ion-exchange capacity for [Co2+(H2O)6]2+ reveals close atoms (i.e.,...
We report a plasma-based strong THz source generated by using intense femtosecond laser pulses to irradiate solid targets at relativistic intensity >10^18W/cm2. Energies up 50 microJ/sr per pulse is observed in the specular direction when are incident onto copper foil 67.5 degree. The appears be linearly polarized. temporal, spectral properties of measured single shot, electro-optic sampling method with chirped pulse. radiation attributed self-organized transient fast electron currents...
The Lewis acid site combined with a Brønsted in zeolite catalysts facilitates first C–C bond formation the initiation step of MTO reaction.
A poly(propylene carbonate) (PPC)-based sandwich-like composite solid polymer electrolyte (SE) was designed and applied to solid-state lithium ion batteries at 25 °C. The structure of the SE composed three parts. polypropylene separator used as a support membrane enhance strength membrane. Succinonitrile in PPC-based increase ionic conductivity. Pure PPC buffer layer closed anode, which could improve interface compatibility, Coulombic efficiency, cycle life batteries. exhibited good...
We employed 29Si and 27Al (3Q) magic-angle spinning (MAS) NMR spectroscopy density functional theory/molecular mechanics (DFT/MM) calculations to investigate the effect of Al/Si substitutions presence silanol nests on parameters as well local geometry SiO4 AlO4− tetrahedra nearest next-nearest neighboring Si Al atoms. The silicon-rich zeolite chabazite structure (Si/Al 38) was chosen for this study a representative model zeolites since it exhibits low number distinguishable T sites. Our...
Significance Diffusion is the primary process in practical multidisciplinary areas such as separation and catalysis. Transportation usually positively correlated with temperature due to thermal motion. We show here an anomalous phenomenon wherein a higher effectively slows diffusion for linear-chain hydrocarbon molecules under confinement. Such obstruction results from novel mechanism of “thermal resistance effect,” which configuration guest molecule significantly deformed effect then...
In this study, a novel 1/3-scale water model was designed for 160-ton ladle based on the similarity principle. The consists of 24 bottom blow holes and four measuring electrodes positioned at various directions heights. order to determine optimal layout double-nozzle blowing global level, fully combined experiments were conducted radial positions 0.55R, 0.60R, 0.65R 0.70R five angles 90°, 95°, 100°, 110° 120°. By investigating effects different combinations position flow rate mixing time,...
We demonstrate experimentally the existence of magic wavelengths and determine ratio oscillator strengths for a single trapped ion. For first time, two near 396 nm ${^{40}\mathrm{Ca}}^{+}$ clock transition are measured simultaneously with high precision. By tuning applied laser to an intermediate wavelength between transitions $4{s}_{1/2}\ensuremath{\rightarrow}4{p}_{1/2}$ $4{s}_{1/2}\ensuremath{\rightarrow}4{p}_{3/2}$, sensitivity Stark shift is greatly enhanced. Furthermore, wavelengths,...
Lipid droplets (LDs) are intracellular organelles that dynamically regulate lipids and energy homeostasis in the cell. LDs can grow through either local lipid synthesis or LD fusion. However, how involving fusion for growth is largely unknown. Here, we show genetic mutation of acox-3 (acyl-CoA oxidase), maoc-1 (enoyl-CoA hydratase), dhs-28 (3-hydroxylacyl-CoA dehydrogenase), daf-22 (3-ketoacyl-CoA thiolase), all involved peroxisomal β-oxidation pathway Caenorhabditis elegans, led to rapid...
Löwenstein's rule (−Al–O–Al– bond formation is forbidden) has been generally accepted for the Al distribution in zeolites. In contrast, it was illustrated recently that violation of present several common zeolites protonated form (e.g., H-SSZ-13 and H-MOR) based on theoretical calculations bare zeolite frameworks. By far, whether direct −Al–O–Al– can not confirmed, thus a more in-depth investigation required to reconcile such conflict. this work, we employed state-of-the-art periodic density...
Highly charged ions (HCIs) have drawn significant interest in quantum metrology and the search for new physics. Among these, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:msup><a:mrow><a:mi>Ni</a:mi></a:mrow><a:mrow><a:mn>12</a:mn><a:mo>+</a:mo></a:mrow></a:msup></a:math> is considered as one of most promising candidates next generation HCI optical clocks, due to its two E1-forbidden transitions M1 E2, which occur visible spectral range. In this work, we used Shanghai-Wuhan...
Abstract For the first time, we experimentally determine infrared magic wavelength for 40 Ca + <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mn>4</mml:mn> <mml:mi>s</mml:mi> <mml:msup> <mml:mstyle scriptlevel="0"/> <mml:mn>2</mml:mn> </mml:msup> </mml:mrow> <mml:msub> <mml:mi>S</mml:mi> <mml:mn>1</mml:mn> <mml:mo>/</mml:mo> </mml:msub> <mml:mo accent="false" stretchy="false">→</mml:mo> <mml:mn>3</mml:mn> <mml:mi>d</mml:mi> <mml:mi>D</mml:mi>...
Erfolgreiche Al-Suche: Die Verteilung katalytisch aktiver Zentren über kristallographische Positionen ist in Zeolithen nicht zufällig, sondern durch die Synthese bedingt. Unterschiedlich hergestellte ZSM-5-Proben lieferten unterschiedliche 27Al-NMR-Signale. DFT-Berechnungen der chemischen Verschiebungen ergaben, dass beobachteten Signale zu Al an unterschiedlichen kristallographischen gehören (siehe Bild).
Highly charged ions (HCIs) are promising candidates for the next generation of atomic clocks, owing to their tightly bound electron cloud, which significantly suppresses common environmental disturbances quantum oscillator. Here we propose and pursue an experimental strategy that, while focusing on various HCIs a single element, keeps number candidate clock transitions as large possible. Following this strategy, identify four adjacent charge states nickel that offer many six optical...