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1.
Sensors (Basel) ; 23(6)2023 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-36992005

RESUMEN

The preservation of image details in the defogging process is still one key challenge in the field of deep learning. The network uses the generation of confrontation loss and cyclic consistency loss to ensure that the generated defog image is similar to the original image, but it cannot retain the details of the image. To this end, we propose a detail enhanced image CycleGAN to retain the detail information during the process of defogging. Firstly, the algorithm uses the CycleGAN network as the basic framework and combines the U-Net network's idea with this framework to extract visual information features in different spaces of the image in multiple parallel branches, and it introduces Dep residual blocks to learn deeper feature information. Secondly, a multi-head attention mechanism is introduced in the generator to strengthen the expressive ability of features and balance the deviation produced by the same attention mechanism. Finally, experiments are carried out on the public data set D-Hazy. Compared with the CycleGAN network, the network structure of this paper improves the SSIM and PSNR of the image dehazing effect by 12.2% and 8.1% compared with the network and can retain image dehazing details.

2.
Pharm Dev Technol ; 16(6): 609-15, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-20718691

RESUMEN

The purpose of this paper was to prepare a stable and high-loaded quercetin emulsion with the quercetin-phospholipid complex. The complex was analyzed by FT-IR and SEM. Quercetin and soybean lecithin were reacted in dichloromethane at a ratio of 1:2.5 for 2 h at 40°C to prepare the complex. The optimum quercetin emulsion formulation consisted of (according to quality percentage), the complex (quercetin 0.06% in the emulsion), miglyol 812 10%, soybean oil 2%, solutol HS 15 1.2%, cremophor ELP 0.4%, vitamin E 0.2%, oleic acid 0.5%, glycerol 2.5%. The quercetin emulsion was sterilized at 121°C for 15 min. The drug content and particle size distribution of the emulsion before and after sterilization were almost unchanged. The results of accelerate stability (stored at 40°C over one month) and short-time stability (stored at room temperature over six months) tests showed that the quercetin emulsion had enough physicochemical stability to undergo storage. The histopathological examination for rabbit ear vein irritation test indicated that the quercetin emulsion produced no more irritation than normal saline.


Asunto(s)
Antioxidantes/administración & dosificación , Excipientes/química , Lecitinas/química , Quercetina/administración & dosificación , Animales , Antioxidantes/química , Antioxidantes/toxicidad , Estabilidad de Medicamentos , Almacenaje de Medicamentos , Emulsiones , Inyecciones Intravenosas , Microscopía Electrónica de Rastreo , Tamaño de la Partícula , Quercetina/química , Quercetina/toxicidad , Conejos , Glycine max/química , Espectroscopía Infrarroja por Transformada de Fourier , Esterilización , Factores de Tiempo , Pruebas de Toxicidad/métodos
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