A5100870613- Asymmetric Synthesis and Catalysis
- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions
- Oxidative Organic Chemistry Reactions
- Asymmetric Hydrogenation and Catalysis
- Cyclopropane Reaction Mechanisms
- Acute Ischemic Stroke Management
- Optical Imaging and Spectroscopy Techniques
- Ocular and Laser Science Research
- Fluorine in Organic Chemistry
- Synthetic Organic Chemistry Methods
- Color Science and Applications
- Analytical Chemistry and Chromatography
- Cerebrovascular and Carotid Artery Diseases
- Antenna Design and Optimization
- Quantum Dots Synthesis And Properties
- Human Pose and Action Recognition
- Vanadium and Halogenation Chemistry
- Remote-Sensing Image Classification
- Chemical Synthesis and Reactions
- Cutaneous Melanoma Detection and Management
- Chemical Synthesis and Analysis
- Coordination Chemistry and Organometallics
- Infrared Thermography in Medicine
- Retinal Imaging and Analysis
China Academy of Launch Vehicle Technology
2024-2025
China Aerospace Science and Technology Corporation
2025
Fudan University
2012-2024
Chengdu Medical College
2024
Minhang District Central Hospital
2024
Harbin Institute of Technology
2024
Shanghai Institute of Organic Chemistry
2012-2021
Novartis (China)
2020
Shaanxi University of Science and Technology
2014-2015
Shanghai Advanced Research Institute
2013
Chiral iron(III)–salan complexes catalysed highly enantioselective α-fluorination and α-hydroxylation of β-keto esters N-Boc oxindoles to give the corresponding products in high yields good-to-excellent ee values under mild reaction conditions.
Abstract Colloidal quantum dots (CQDs) are highly regarded for their outstanding photovoltaic characteristics, including excellent color purity, stability, high photoluminescence yield (PLQY), narrow emission spectra, and ease of solution processing. Despite significant progress in dot light-emitting diodes (QLEDs) technology since its inception 1994, blue QLEDs still fall short efficiency lifespan compared to red green versions. The toxicity concerns associated with Cd/Pb-based (QDs) have...
LCZ696 is a novel treatment for patients suffering from heart failure that combines the two active pharmaceutical ingredients sacubitril and valsartan in single chemical compound. While an established drug substance, new manufacturing process suitable large-scale commercial production had to be developed sacubitril. The use of chemocatalysis, biocatalysis, flow chemistry as state-of-the-art technologies allowed efficiently build up structure achieve defined performance targets.
The evidence for the association between white matter hyperintensity (WMH) severity and neurological deterioration (ND) in patients with single subcortical infarction (SSI) remains unclear whether them is modified by anterior circulation parent artery steno-occlusion (PAS) unknown. Herein, we aimed to prospectively investigate internal relevance.
Two novel chiral bipyrrolidine-derived phosphine ligands <b>L1</b> and <b>L2</b> were synthesized. The 'AgOTf + <b>L1</b>' protocol catalyzes the asymmetric [3+2] cycloaddition of azomethine ylides with alkenes to give highly substituted pyrrolidines in good yields (up 90%) moderate high diastereoselectivities >19:1 dr) enantioselectivities 76%).
Light emitting diodes (LEDs) are considered next-generation light sources. Because of their narrow emission spectrum, easy adjustment, and various other characteristics, LEDs can be used in many situations, especially those that require dimming or spectral assemblage. In this paper we discuss assemblage with LEDs. We cover possible valid arrangements a spectrum from 400 to 700 nm by an exhaustive genetic algorithm, calculate the highest luminous efficacy source for each correlated color...
A vision experiment comparing the brightness of direct current light and pulsed red (640 nm) green (550 colors was conducted. The frequency is 100 Hz duty ratio varies between 10% 90% with an interval 10%. Talbot-Plateau law holds for but fails color when smaller than 70%. For light, maximum enhancement factor 1.17, which appears at condition 20% ratio. results show that sensitivity human eye on changes spectrum cycle are different.
A practical Fe-BPsalan-catalyzed asymmetric Diels–Alder reaction of various alkylidene β-ketoesters and dienes was developed to afford estrone analogues in excellent yields, good high diastereoselectivities enantioselectivities.
An iron(III)-BPsalan complex was found to efficiently catalyze the asymmetric chlorination reaction of cyclic β-keto esters and N-Boc oxindoles, affording corresponding chlorinated products in high yield up 92% ee with NCS as reagent under mild conditions.
Pulsed operations can be used to improve the efficiency of light-emitting diodes (LEDs) on human perception. We conducted an experiment asking 46 observers compare brightness a viewing area that was separated into two similar parts and illuminated by both pulse-modulated LEDs DC-driven LEDs. Using filters, we eliminated influence color shift The results show improves more when duty ratio decreases. In addition, perception enhancement has linear relationship with ratios ranging between 20%...
The self-supervised learning (SSL) technique, driven by massive unlabeled data, is expected to be a promising solution for semantic segmentation of remote sensing images (RSIs) with limited labeled revolutionizing transfer learning. Traditional ‘local-to-local’ from small, local datasets another target dataset plays an ever-shrinking role due RSIs’ diverse distribution shifts. Instead, SSL promotes ‘global-to-local’ paradigm, in which generalized models pre-trained on arbitrarily large are...
Spatio-temporal video grounding (or STVG) task aims at locating a spatio-temporal tube for specific instance given text query. Despite advancements, current methods easily suffer the distractors or heavy object appearance variations in videos due to insufficient information from text, leading degradation. Addressing this, we propose novel framework, context-guided STVG (CG-STVG), which mines discriminative context and applies it as supplementary guidance target localization. The key of...
Poor wound healing is a common secondary complication for many diseases. Light therapy new way to improve healing. In this paper, we use LED study the light effect under low power and find optimum irradiation parameters. It can be meaningful practical application. A 630 nm an 830 were used research influence of low-level on through cytological animal experiments. experiment, cell viability synthesis hydroxyproline was measured. rats given artificial wound. Then, effects compared with control...
It has been proved that lighting nonvisual effects on the human body, including changes in heart rate and blood pressure. Heart pressure are associated with autonomic nervous system can indicate stress level. The present study investigates whether influenced by frequency or duty cycle of pulsed light, together duration lighting. Twelve healthy young subjects were recruited for investigation. Subjects exposed to light varying frequencies (40 Hz, 100 300 Hz) cycles (10%, 50%, 90%). Exposure...
Abstract Review: 35 refs.
Abstract A chiral (R,R)‐bipyrrolidine‐derived ligand is found to allow a moderately efficient asymmetric Ag (I)‐catalyzed 1,3‐dipolar cycloaddition of azomethine ylides variety functionalized olefins.