Results 251 to 260 of about 258,094 (311)

Subsurface oxidation of polyethylene

Journal of Biomedical Materials Research, 1998
Since the 1960s ultrahigh molecular weight polyethylene has been a primary bearing material in orthopedic prostheses. Most polyethylene components have been sterilized by exposure to gamma radiation, but in the presence of oxygen this promotes degradation and correlates with component failure in the body.
B M, Daly, J, Yin
openaire   +2 more sources

Mechanisms of surface and subsurface runoff generation in subtropical soil-epikarst systems: Implications of rainfall simulation experiments on karst slope

, 2020
Southwest China receives abundant rainfall with a mean annual precipitation of 1450 mm (1960–2013) but surface runoff is small, whereas subsurface runoff is relatively large on karst hillslopes.
Sheng Wang, Zhiyong Fu, Hongsong Chen, Yunpeng Nie, Qinxue Xu   +4 more
semanticscholar   +1 more source

Nanoscale subsurface imaging

Journal of Physics: Condensed Matter, 2017
The ability to probe structures and functional properties of complex systems at the nanoscale, both at their surface and in their volume, has drawn substantial attention in recent years. Besides detecting heterogeneities, cracks and defects below the surface, more advanced explorations of chemical or electrical properties are of great interest. In this
Soliman, M., Ding, Y., Tetard, L.
openaire   +3 more sources

Catalysis and subsurface bonding

Physical Review B, 1988
We analyze the data on hydrogen adsorption and catalyzed water formation on Pt surfaces. Evidence is obtained for the existence of a weakly bound subsurface state of H. A reaction mechanism involving subsurface hydrogen, which can explain the catalytic activity of Pt surfaces in hydrogenation reaction, is put forward.
, Lagos, , Ramirez, , Schuller
openaire   +2 more sources

Subsurface damage detection of a steel bridge using deep learning and uncooled micro-bolometer

Construction and Building Materials, 2019
A new deep learning-based method is proposed to detect subsurface damage of steel members in a steel truss bridge using infrared thermography (IRT). To reduce computation costs, the original deep inception neural network (DINN) is modified for transfer ...
Rahmat Ali, Y. Cha
semanticscholar   +1 more source

Evaluation of Sampling in the Subsurface

Water Resources Research, 1996
The evaluation of sampling is presented in the form of a sampling error defined as a difference between the true average and the sampled average of the measured process over the sampling domain. The sampling error is quantified as a product between the process point variance (defined at the scale of a sampling device's support volume) and the sampling ...
openaire   +2 more sources

Applications of Subsurface Microscopy

2012
Exploring the interior of a cell is of tremendous importance in order to assess the effects of nanomaterials on biological systems. Outside of a controlled laboratory environment, nanomaterials will most likely not be conveniently labeled or tagged so that their translocation within a biological system cannot be easily identified and quantified ...
Laurene, Tetard, Ali, Passian, Rubye H, Farahi, Brynn H, Voy, Thomas, Thundat   +4 more
openaire   +2 more sources

Smoother subsurface scattering

SIGGRAPH 2009: Talks, 2009
The irradiance-cached dipole diffusion approximation proposed by [Jensen and Buhler 2002] is a practical tool for capturing the subsurface scattering of many common materials in the context of film-quality rendering. One drawback of this model is the high irradiance point density it requires to attenuate sampling noise at low mean free paths, which can
openaire   +1 more source

Effect of subsurface dams on saltwater intrusion and fresh groundwater discharge

Journal of Hydrology, 2019
Subsurface dams are widely used to prevent saltwater intrusion around the world. A subsurface dam blocks the groundwater movement both from and towards the sea.
Qinpeng Chang, Tianyuan Zheng, Xilai Zheng, Bo Zhang, Qiguo Sun, M. Walther   +5 more
semanticscholar   +1 more source

In situ remediation of subsurface contamination: opportunities and challenges for nanotechnology and advanced materials

Environmental Science: Nano, 2019
Engineered nanomaterials alone or in combination with other technologies may improve in situ subsurface remediation of legacy and emerging contaminants.
Tong Zhang, G. Lowry, Natalie L. Cápiro, Jianmin Chen, Wei Chen, Yongsheng Chen, D. Dionysiou, D. Elliott, S. Ghoshal, T. Hofmann, Heileen Hsu-Kim, J. Hughes, Chuanjia Jiang, G. Jiang, C. Jing, M. Kavanaugh, Qilin Li, Sijin Liu, Jie Ma, B. Pan, T. Phenrat, Xiaolei Qu, X. Quan, Navid B. Saleh, P. Vikesland, Qiuquan Wang, P. Westerhoff, M. Wong, Tian Xia, B. Xing, B. Yan, Lunliang Zhang, Dongmei Zhou, P. Alvarez   +33 more
semanticscholar   +1 more source