Results 91 to 100 of about 243,968 (388)

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source

'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]

, 2007
A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Brown, Douglas I. Benn, Nicholas R.J. Hulton, Raymond, Ruth H. Mottram, Van der Veen   +5 more
core   +1 more source

Limited Contribution of Glacier Mass Loss to the Recent Increase in Tibetan Plateau Lake Volume

Frontiers in Earth Science, 2020
The Tibetan plateau plays an essential role in the water supply to Asia’s large river systems and, as the largest and highest mountain plateau in the world, it drives the Asian monsoon and influences global atmospheric circulation patterns.
Fanny Brun, Fanny Brun, Désirée Treichler, David Shean, Walter W. Immerzeel   +4 more
doaj   +1 more source

Decoding the Cellular Heterogeneity and Malignant Progression of Human Penile Squamous Cell Carcinoma by Single‐Cell RNA Sequencing

Advanced Science, EarlyView.
Single‐cell transcriptomic and functional analyses identify SEMA3C as a key regulator of tumor progression and tumor microenvironment remodeling in penile squamous cell carcinoma. SEMA3C promotes epithelial–mesenchymal transition, tumor growth, and invasion while shaping an immunosuppressive microenvironment, highlighting its potential as a prognostic ...
Xiheng Hu, Wensheng Shi, Liang Dong, Lingjuan Huang, Xiyuan Zhang, Yiting Feng, Jie Sun, Lanlan Liu, Teng Liu, Jun Fu, Bowen Zhong, Qihao Leng, Xiaohua Wu, Minfeng Chen, Lingfang Li, Yuan Li, Xin Jin, Long Wang, Jian Cao, Xin Li, Mingzhu Yin, Xiang Chen   +21 more
wiley   +1 more source

Comparison and verification of enthalpy schemes for polythermal glaciers and ice sheets with a one-dimensional model [PDF]

, 2015
The enthalpy method for the thermodynamics of polythermal glaciers and ice sheets is tested and verified by a one-dimensional problem (parallel-sided slab).
Blatter, Heinz, Greve, Ralf
core   +2 more sources

Enhancing the Ultrasonic Welding of Wood Using 3D Printed Lignin Energy Directors

Advanced Science, EarlyView.
Sustainable manufacturing for lightweight structures using ecofriendly materials will be key to reducing material consumption and lowering carbon footprints. Here, an approach is presented to weld wood using ultrasonic vibrations with material at the joint interface to direct energy.
Muhamad Amani, Kathrin Weiland, Mark Ablonczy, Natalia Sofia Guevara‐Sotelo, Ioannis Zygouris, Johan van Stuyvesant Meijen, Kunal Masania   +6 more
wiley   +1 more source

Recent glacial recession in the Rwenzori Mountains of East Africa due to rising air temperature [PDF]

, 2006
Based on field surveys and analyses of optical spaceborne images (LandSat5, LandSat7), we report recent decline in the areal extent of glaciers in the Rwenzori Mountains of East Africa from 2.01 +/- 0.56 km(2) in 1987 to 0.96 +/- 0.34 km(2) in 2003.
Majugu, A, Mileham, L, Muwanga, A, Nakileza, B, Taylor, RG, Tindimugaya, C   +5 more
core   +1 more source

YKT6 Promotes Bladder Cancer Progression by Stabilizing β‐catenin Through USP7‐Mediated Deubiquitination

Advanced Science, EarlyView.
The SNARE protein YKT6 is upregulated in bladder cancer (BLCA), correlating with poor prognosis. YKT6 promotes tumor proliferation and metastasis by activating Wnt/β‐catenin signaling. It recruits Ubiquitin‐Specific Peptidase 7 (USP7) to deubiquitinate and stabilize β‐catenin, enhancing its nuclear accumulation and driving oncogenic gene expression ...
Sheng Tu, Wenzhi Du, Yongwen Luo, Jiageng Shi, Tianyun Liu, Meng Ji, Kangping Xiong, Siming Chen, Fenfang Zhou, Mingxing Li, Jingtian Yu, Gang Wang, Lingao Ju, Yi Zhang, Yu Xiao, Xinghuan Wang, Kaiyu Qian   +16 more
wiley   +1 more source

Effect of topography on subglacial discharge and submarine melting during tidewater glacier retreat. [PDF]

, 2017
-We explored secular variations in subglacial discharge and submarine melting with an idealized model -Subglacial discharge increases as tidewater glaciers retreat along retrograde beds -Submarine melting depends on subglacial discharge and ...
Amundson, Arendt, Arimitsu, Arneborg, Aðalgeirsdóttir, Benn, Carroll, Carroll, Cowan, Cowton, Cuffey, Echelmeyer, Enderlin, Fried, Harrison, Hock, Holland, Howat, Huss, Jackson, Jansson, Jenkins, Kamb, Luckman, Lydersen, McNabb, Meier, Meire, Mortensen, Motyka, Motyka, Motyka, Motyka, Nick, Nick, O'Leary, O'Neel, Pfeffer, Podrasky, Post, Rignot, Rignot, Roe, Schoof, Slater, Slater, Straneo, Truffer, Urbanski, Veen, Veen, Veen   +51 more
core   +1 more source

Modelling glacier-bed overdeepenings and possible future lakes for the glaciers in the Himalaya—Karakoram region

Annals of Glaciology, 2016
Surface digital elevation models (DEMs) and slope-related estimates of glacier thickness enable modelling of glacier-bed topographies over large ice-covered areas.
A. Linsbauer, Holger Frey, W. Haeberli, H. Machguth, Mohd Farooq Azam, Simon Allen   +5 more
semanticscholar   +1 more source