Results 91 to 100 of about 49,103 (280)

Enzymatic activity toward poly(L-lactic acid) implants [PDF]

, 1990
Tissue reactions toward biodegradable poly(L-lactic acid) implants were monitored by studying the activity pattern of seven enzymes as a function of time: alkaline phosphatase, acid phosphatase, -naphthyl acetyl esterase, -glucuronidase, ATP-ase, NADH ...
Feijen, J., Hardonk, M.J., Molenaar, I., Nieuwenhuis, P., Schakenraad, J.M.   +4 more
core   +4 more sources

Effect of an Early-Age Exposure on the Degradation Mechanisms of Cement Paste under External Sulfate Attack. [PDF]

Materials (Basel), 2023
Metalssi OO, Ragoug R, Barberon F, Lacaillerie JD, Roussel N, Divet L, Torrenti JM.   +6 more
europepmc   +1 more source

Combustion system processes leading to corrosive deposits [PDF]

Degradation of turbine engine hot gas path components by high temperature corrosion can usually be associated with deposits even though other factors may also play a significant role.
Kohl, F. J., Rosner, D. E., Stearns, C. A.   +2 more
core   +1 more source

Fireside corrosion degradation of ferritic alloys at 600°C in oxy-fired conditions [PDF]

, 2014
This paper reports the results of a study carried out to investigate the effects of simulated coal/biomass combustion conditions on the fireside corrosion. The 1000 h deposit recoat exposure (5 × 200 h cycles) was carried out at 600 °C.
Dudziak, T., Hussain, T., Oakey, J. E., Simms, Nigel J., Syed, A. U.   +4 more
core   +1 more source

Semiconducting Polymer Nanoparticles Enable Light‐Controlled Bidirectional Modulation of Nitric Oxide in Endothelial Cells

Advanced Science, EarlyView.
Bimodal modulation of nitric oxide in endothelial cells is achieved by light‐sensitive polymer nanoparticles. In dark, P3HT/PEDOT:PSS NPs boost intracellular ·NO, upregulate both endothelial and induced nitric oxide synthase, and drive a metabolic shift toward glycolysis.
Camilla Marzuoli, Andrea Pianetti, Elena Mancinelli, Anthea Villano, Matteo Vailati, Paola Lagonegro, Miryam Criado‐Gonzalez, Montserrat Climent, Hansel Comas‐Rojas, Leonardo Elia, Francesco Moccia, Gabriele Tullii, Maria Rosa Antognazza   +12 more
wiley   +1 more source

Constraint of Lignin–Carbohydrate Complex Orchestrated on Polyphenol in Oil–Water Interface Targeting Ulcerative Colitis Therapy

Advanced Science, EarlyView.
This study constructed the W1/O/W2 emulsion–based targeted therapy delivery system for ulcerative colitis (UC) utilizing LCC as surfactant for the first time. This multifunctional emulsion offered certain therapeutic advantages for UC, including targeted colonic delivery of active compounds, synergistic modulation of gut microbiota through combined ...
Qian Wu, Xingyu Zhang, Jingjia Zhang, Gaohui Huang, Chen Zhou, Chunlin Li, Xiaojun Huang, Jianbo Xiao, Nianjie Feng, Yuanbin She   +9 more
wiley   +1 more source

Performance of Rice Husk Ash Concrete in Sulfate Solutions [PDF]

, 2017
Durability of concrete is defined as its ability to resist deterioration after exposure to the environment of its use. This work examined the performance of Rice Husk Ash (RHA) concrete in sodium sulfate (Na2SO4), magnesium sulfate (MgSO4) and combined ...
Ahmed, A, Kamau, J
core   +1 more source

Numerical simulation on transport-crystallization-mechanical behavior in concrete structure under external sulfate attack and wetting–drying cycles

Materials & Design
External sulfate attack (ESA) coupled with wetting–drying alternation poses a significant threat to the concrete durability, while there are few models to simulate the above ESA behavior. In this paper, a simplified transport-mechanical model is proposed
Zi-Qi Shan, Guang-Ji Yin, Xiao-Dong Wen, Ling Miao, Sai-Sai Wang, Xiao-Bao Zuo   +5 more
doaj   +1 more source

A Micromechanical-Based Semi-Empirical Model for Predicting the Compressive Strength Degradation of Concrete under External Sulfate Attack. [PDF]

Materials (Basel), 2023
Li S, Yu X, Yang S, Wang H, Chen D.
europepmc   +1 more source

Meeting Review: Airborne Aerosol Inlet Workshop [PDF]

Proceedings from the Airborne Aerosol Inlet Workshop are presented. The two central topics of discussion were the role of aerosols in atmospheric processes and the difficulties in characterizing aerosols.
Baumgardner, Darrel, Huebert, Barry, Wilson, Chuck   +2 more
core   +1 more source