Results 101 to 110 of about 2,661,884 (303)

A New Method for Automatic Glacier Extraction by Building Decision Trees Based on Pixel Statistics

Remote Sensing
Automatic glacier extraction from remote sensing images is the most important approach for large scale glacier monitoring. Commonly used band calculation indices to enhance glacier information are not effective in identifying shadowed glaciers and debris-
Xiao Liu, Hongyi Cheng, Jiang Liu, Xianbao Su, Yuchen Wang, Bin Qiao, Yipeng Wang, Nai’ang Wang   +7 more
doaj   +1 more source

Differential shift estimation in the absence of coherence: performance analysis and benefits of polarimetry [PDF]

, 2011
The estimation of the local differential shift between synthetic aperture radar (SAR) images has proven to be an effective technique for monitoring glacier surface motion. As images acquired over glaciers by short wavelength SAR systems, such as TerraSAR-
Villano, Michelangelo, Papathanassiou, Konstantinos P.   +1 more
core  

Spectral roughness of glaciated bedrock geomorphic surfaces: Implications for glacier sliding [PDF]

, 2000
A microroughness meter (MRM) was used to measure the high-frequency roughness of a number of geomorphic surfaces in the forefield of Glacier de Tsanfleuron, Switzerland.
Martin J. Siegert, Danny McCarroll, Hubbard, B., McCarroll, D., Bryn Hubbard, Siegert, M. J.   +5 more
core   +1 more source

H4K12 Lactylation Regulates NDUFS7 to Drive Microglia Reverse Electron Transport in Spinal Cord Injury

Advanced Science, EarlyView.
Lactate accumulation after SCI promotes H4K12la lactylation, which upregulates NDUFS7, triggering mitochondrial RET and ROS, enforcing pro‐inflammatory microglial polarization. MM@mPTC, a biomimetic nanotherapeutic, degrades LDHA in activated microglia, reducing H4K12la lactylation and blocking RET, thus curbing ROS, fostering a reparative phenotype ...
Chenglong Hong, Zhichen Jiang, Zhouwei Wu, Chenyu Wu, Jiang Liu, Kaijie Guo, Yihui Liang, Shaobo Xu, Yuchen Jin, Yong Xiao, Lei Guo, Hui Xu, Sunren Sheng, Chenggui Wang   +13 more
wiley   +1 more source

Glacier speed-up as a possible precursor to volcanic eruptions at Mount Veniaminof, Alaska

Journal of Glaciology
Identifying early indicators of volcanic eruptions is a fundamental part of natural hazard management but is notoriously difficult. Here we consider whether monitoring changes in glacier velocity can help.
Michael Dieter Martin, Iestyn Barr, Benjamin Edwards, Matteo Spagnolo, Elias Symeonakis, Joseph Mallalieu, Kathryn Adamson, Donal Mullan, Maximillian Van Wyk de Vries   +8 more
doaj   +1 more source

Engineering Spatially Localized Bioactive Microenvironments in Assembly Implants for Spatially Extended Bone Ingrowth

Advanced Science, EarlyView.
An assembly porous titanium/β‐TCP implant is developed to establish a spatially programmable osteogenic microenvironment for enhanced osseointegration. By decoupling mechanical support from bioactive ion release, localized ionic gradients generated from the β‐TCP module direct osteogenic activity and bone ingrowth toward the porous titanium framework ...
Heng Zhang, Jingjing Diao, Junhua Ke, Naru Zhao, Yudi Kuang, Yingjun Wang   +5 more
wiley   +1 more source

Surge of the Bivachny Glacier in 2012–2015

Лëд и снег, 2015
The surge of the Bivachny Glacier that occurred in 2012–2015 is analyzed with the use of photographing performed from International Space Station in 2001–2015 together with data of the satellite monitoring of 1972–2000.
V. M. Kotlyakov, L. V. Desinov, V. A. Rudakov   +2 more
doaj   +1 more source

Representing moisture fluxes and phase changes in glacier debris cover using a reservoir approach [PDF]

, 2014
Due to the complexity of treating moisture in supraglacial debris, surface energy balance models to date have neglected moisture infiltration and phase changes in the debris layer.
Essery, Richard, Bush, A. B.G., A. B. G. Bush, Maussion, F., Brock, B. W., Nicholson, Lindsey, Bush, Andrew, L. I. Nicholson, Collier, Emily, F. Maussion, Maussion, Fabien, Collier, E., Nicholson, L. I., R. Essery, Brock, Benjamin, Essery, R., E. Collier, B. W. Brock   +17 more
core   +2 more sources

Dramatic Enhancement and Integration of Properties in Pork Belly‐Inspired All‐Biomass Composite Films via Facile, Sustainable, and Controllable Design

Advanced Science, EarlyView.
A pork belly‐inspired all‐biomass composite film was constructed through layer‐by‐layer assembly of cellulose nanofibers (CNFs), gelatin, and graphitized carbon nanosheets (GCNs) via hydrogen bonding and π–π stacking interactions. The excellent mechanical properties, effective thermal management, and outstanding EMI shielding performance of the ...
Junchao Ren, Chenglei Huang, Chengxu Pei, Mengde Huang, Yuanyuan Xu, Chengyu Yu, Hao Nie, Guangbing Zhao, Shijing Song, Hanwu Lei, Fang Wang, Bin Li, Qingfa Zhang   +12 more
wiley   +1 more source

Utilising seismic station internal GPS for tracking surging glacier sliding velocity

Journal of Glaciology
Glacier ice flux is a key indicator of mass balance; therefore, accurate monitoring of ice dynamics is essential. Satellite-based methods are widely used for glacier velocity measurements but are limited by satellite revisit frequency.
Wojciech Gajek, Adrian Luckman, William D. Harcourt, Danni Mei Pearce, Richard Hann   +4 more
doaj   +1 more source