Ratio of mirror zone depth to flaw depth after failure of glass beams

The processes of laser-shock-wave processing of NiTi alloys with shape memory effect are investigated by the methods of dimensional analysis and finite element modeling. The dependences of the depth of the plastic zone on the peak pressure in the shock wave and the duration of the laser pulse are obtained at different peak pressures. Keywords: shape memory alloys, laser-shock-wave processing, dimensional analysis, residual stresses, plastic zone depth. [email protected]

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Influence of saturated zone depth and vegetation on the performance of vertical flow-constructed wetland with continuous feeding

Environmental Science and Pollution Research ◽

10.1007/s11356-018-3288-0 ◽

2018 ◽

Vol 25 (33) ◽

pp. 33286-33297 ◽

Cited By ~ 1

Author(s):

Guochen Liu ◽

Zonglian She ◽

Mengchun Gao ◽

Jiacheng Liang ◽

Chunji Jin ◽

...

Keyword(s):

Constructed Wetland ◽

Vertical Flow ◽

Saturated Zone ◽

Vertical Flow Constructed Wetland ◽

Continuous Feeding ◽

Zone Depth

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A test of empirical and semi-analytical algorithms for euphotic zone depth with SeaWiFs data off southeastern China

10.1117/12.758672 ◽

2007 ◽

Author(s):

Jingjing Chen ◽

Shaoling Shang ◽

Junwu Tang ◽

Zhongping Lee ◽

Huasheng Hong ◽

...

Keyword(s):

Euphotic Zone ◽

Southeastern China ◽

Zone Depth

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Predicting Roadway Surrounding Rock Deformation and Plastic Zone Depth Using BP Neural Network

Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015 ◽

10.2991/iccet-15.2015.305 ◽

2015 ◽

Cited By ~ 1

Author(s):

Jianying Zhang ◽

Yucheng Zhao ◽

Mingyuan Liu

Keyword(s):

Neural Network ◽

Plastic Zone ◽

Bp Neural Network ◽

Surrounding Rock ◽

Rock Deformation ◽

Zone Depth ◽

Surrounding Rock Deformation

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Low‐frequency propagation across the East Greenland and Frontal Zone: Depth dependence of transmission loss

The Journal of the Acoustical Society of America ◽

10.1121/1.2024757 ◽

1987 ◽

Vol 82 (S1) ◽

pp. S31-S31

Author(s):

Leonard E. Mellberg ◽

D. N. Connors ◽

D. G. Browning ◽

G. Botseas ◽

O. M. Johannessen

Keyword(s):

Frontal Zone ◽

Transmission Loss ◽

Low Frequency ◽

East Greenland ◽

Depth Dependence ◽

Zone Depth

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Comparison of cutting and coagulation properties of 1.56 and 1.94 µm fiber lasers and a 0.98 µm semiconductor laser

Bulletin of Siberian Medicine ◽

10.20538/1682-0363-2021-4-56-62 ◽

2022 ◽

Vol 20 (4) ◽

pp. 56-62

Author(s):

M. A. Ryabova ◽

M. Yu. Ulupov ◽

N. A. Shumilova ◽

G. V. Portnov ◽

E. K. Tikhomirova ◽

...

Keyword(s):

Semiconductor Laser ◽

Fiber Lasers ◽

Radiation Power ◽

Biological Effects ◽

Laser Wavelength ◽

Ablation Zone ◽

Tissue Samples ◽

Zone Depth ◽

Laser Incision ◽

Coagulation Zone

Aim of the study was to compare the cutting and coagulation properties of 1.56 and 1.94 μm fiber lasers with those of a 0.98 μm semiconductor laser.Materials and methods. A comparative study of the biological effects of 1.56 and 1.94 µm lasers and a 0.98 µm semiconductor laser used in a constant, continuous mode was carried out. The cutting properties of the lasers were evaluated on the chicken muscle tissue samples by the width and depth of the ablation zone formed via a linear laser incision at a speed of 2 mm/s, while the coagulation properties were assessed by the width of the lateral coagulation zone. The zones were measured using a surgical microscope and a calibration slide. For statistical analysis, power values of 3, 5, 7, 9, and 11 W were chosen for each laser wavelength.Results. Analysis of the findings confirmed that laser wavelength had a statistically significant effect on the linear dependence between incision parameters and laser power. It was found that the 1.56 μm fiber laser (water absorption) had a greater coagulation ability but a comparable cutting ability compared with the 0.98 μm laser (hemoglobin absorption). When used in the power mode of 7W or higher, the 1.94 µm laser provided superior cutting performance compared with the 0.98 µm semiconductor laser at the same exposure power. Elevating the power in any of the lasers primarily increased the width of the ablation zone, and to a lesser extent – the crater depth and the width of the lateral coagulation zone. Therefore, in comparison with the 0.98 μm semiconductor laser, higher radiation power in the 1.56 and 1.94 μm lasers mainly influences their cutting properties, expanding the width and depth of the ablation zone, and has a smaller effect on their coagulation ability.Conclusion. The findings of the study showed that the 1.56 and 1.94 μm fiber lasers have better coagulation properties in comparison with the 0.98 μm semiconductor laser. was statistically proven that all incision characteristics (width of the lateral coagulation zone, depth and width of the ablation zone) for the 1.56, 1.94, and 0.98 μm lasers depend on the power of laser radiation. The 1.94 µm laser is superior to the 0.98 µm laser in its cutting properties.

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