A5100371058- Infection Control and Ventilation
- Wind and Air Flow Studies
- Microbial Natural Products and Biosynthesis
- Marine Sponges and Natural Products
- Carbon and Quantum Dots Applications
- Fungal Biology and Applications
- Luminescence and Fluorescent Materials
- Building Energy and Comfort Optimization
- Aerodynamics and Acoustics in Jet Flows
- Noise Effects and Management
- Nanocluster Synthesis and Applications
- COVID-19 epidemiological studies
- Evacuation and Crowd Dynamics
- Metastasis and carcinoma case studies
- Colorectal Cancer Surgical Treatments
- Air Quality and Health Impacts
- Infection Control in Healthcare
- Gastric Cancer Management and Outcomes
- Renal cell carcinoma treatment
- Aerodynamics and Fluid Dynamics Research
- Gastrointestinal Tumor Research and Treatment
- Cerebrovascular and Carotid Artery Diseases
- Inhalation and Respiratory Drug Delivery
- Indoor Air Quality and Microbial Exposure
- Particle Dynamics in Fluid Flows
Peking University
2013-2024
Southeast University
2017-2024
University of Shanghai for Science and Technology
2022-2024
Peking University First Hospital
2024
Jianghan University
2024
Guangzhou University of Chinese Medicine
2023
Shenzhen Pingle Orthopedic Hospital
2023
Chinese Academy of Medical Sciences & Peking Union Medical College
2023
Peking University People's Hospital
2013-2022
Hubei University of Chinese Medicine
2022
Traditional fluorescent anti-counterfeiting labels based on "on-off" fluorescence can be easily cloned. It is important to explore advanced with high-level security. Here, a pioneering ion species- and concentration-dependent technique developed. By successive loading Cu
Abstract Aqueous zinc‐ion batteries (AZIBs) with the merits of superior security, natural abundance, and inexpensive Zn hold great promises for next‐generation energy storage. Nevertheless, instabilities anodes arising from unsatisfactory dendrite growth parasitic reactions have seriously restricted their practical application. Herein, an interfacial protection engineering approach is proposed stabilizing anode via in ‐ situ constructing 3D hybrid fiber networks within high elastic...
To elucidate the effects of cultivar and harvest month on phenolic content antioxidant activity mulberry leaves, four major phenolics, including chlorogenic acid (ChA), benzoic (BeA), rutin (Rut) astragalin (Ast), were quantified using an HPLC-UV method. Leaves from six cultivars, collected April to October, analyzed. The leaves was assessed by ferric reducing power (FRAP), hydroxyl radical scavenging (HSA) superoxide (SSA) assays. results showed that total values compounds ranged 2.3 dry...
Physical distancing has been an important policy to mitigate the spread of novel coronavirus disease 2019 (COVID-19) in public settings. However, current 1–2 m physical rule is based on physics droplet transport and could not directly translate into infection risk. We therefore revisit 2-m by developing infection-risk-based model for human speaking. The key modeling framework components include viral load, droplets dispersion evaporation, deposition efficiency, dose-response rate results...
In this work, fluorescent solid carbon dots (CDs) welcome a new member, namely anhydride-terminated CDs, which have photoluminescence quantum yield (PLQY) of 28% for orange-emitted CDs at 580 nm in powder form. For the first time, we revealed that electronic coupling functional groups should be crucial factor affecting optical properties CDs. Due to negligible hydrogen bonding interaction between anhydride groups, excitons neighboring is weak, leading high PLQY and an immobile emission peak...
Exhaled jets from an infected person are found to be locked at a certain height when thermal stratification exists in rooms, causing potential high risk of disease transmission. This work is focused on the theoretical analysis dynamic characteristics human speech droplets and residual droplet nuclei both thermally uniform stratified environments. Results show that most generated speaking can totally evaporate or deposit ground within 1.5-2 m. For small < 80μm, shows more significant impact...
Two new natural products, named paecilin A (1) and B (2), together with two known compounds secalonic acid D (3) (11)-cytochalasa-6(12),13-diene-1,21-dione-16,18-dimethyl-7-hydroxy-10-phenyl-(7S*,13E,16S*,18S*) (4), were isolated from the mangrove endophytic fungus, Paecilomyces sp. (tree 1-7) South China Sea. 1D 2D NMR experiments including COSY, HMQC, HMBC used for determination of their structures. In our cytotoxicity assays, showed toward KB cells IC(50) < 1 microg ml(-1) inhibiting...
The risk of cross-infection is high when the susceptible persons are exposed to pathogen-laden droplets or droplet nuclei exhaled by infectors. This study proposes a jet integral model predict dispersion contaminants, evaluating exposure and determining threshold distance identify direct indirect exposures in both thermally uniform stratified environments. results show that maximum concentration contaminants bed-lying infector clearly decreases short (<1.8 m) environment, while it maintains...
Abstract We report the unambiguous assignments of 1 H and 13 C NMR spectra two new natural products, namely, 1,4,5,6,7,9‐hexahydroxy‐2‐methoxy‐7‐methyl‐5β,9β,8aβ, 6α,10aα‐hexahydroanthracen‐10 (10aH)‐one (1) 1,4,6‐trihydroxy‐2‐methoxy‐7‐methylanthracene‐9, 10‐dione (2), together with three known anthraquinones. These compounds were all isolated from marine endophytic fungus No. 1403 collected South China Sea. Compounds 3 4 for first time. The structures elucidated by spectroscopic methods 1D...
The aim of this study is to explore the values enhanced CT and oral contrast-enhanced ultrasonography on preoperative T stage in gastric carcinoma.Forty patients with carcinoma, including 27 males 13 females, were confirmed by endoscopy, operation, pathology. median age these was 49 years old (25 73 years). There 19 cases well-differentiated adenocarcinoma, poorly differentiated 5 signet ring cell 4 mucinous adenocarcinoma All examined both ultrasound examination simultaneously 1 week before...
Exhaled droplets of an infected person can spread diseases with the expiratory flows in indoor environments. This work focuses on how thermal stratification affects evaporation and dispersion exhaled by using a theoretical integral model. Pure water different diameters (10-240μm) are disperse RHs (0, 30%, 50% 60%). Results show that for medium (50-170μm), obviously weaken due to less heat mass transfer between ambient air. The were similarly influenced when RH increases from 0 50%,...
The use of environment-friendly carbon dots (CDs) for preparing luminescent solar concentrators (LSCs) is a hot topic. Because the low extinction coefficient CDs and thin film thickness, most reported LSCs fabricated by CD-containing on matrix have optical efficiency below 5%. Bulky CD-based are expected to be used as solution because increased thickness can compensate CDs. However, challenge quenched fluorescence free radicals during polymerization. Herein, we radical-resistant fluorescent...