Results 101 to 110 of about 199,649 (303)

A Study of Sediment Transport in Norwegian Glacial Rivers, 1969 [PDF]

, 1973
From original report: The Norwegian Water Resources and Electricity Board, Institute of Water Resources, Department of Hydrology, Oslo. September 1970. Report No. 6/70.Permission to translate this Norwegian report was kindly given by G.
Ekman, S. R., Ziegler, T., Østrem, G.
core  

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

Advanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray, Zoe Grämiger, André R. Studart, Rafael Libanori   +3 more
wiley   +1 more source

Lecture notes on sediment transportation and channel stability [PDF]

, 1961
These notes have been prepared for a series of lectures on sediment transportation and channel stability given by the authors to a group of engineers and geologists of the U. S. Department of Agriculture assembled at Caltech on September 12-16,1960. The
Brooks, Norman H., Kennedy, John F. (John Fisher), Vanoni, Vito A.   +2 more
core   +1 more source

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

Advanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim, Uijung Yong, Myungji Kim, Jaewook Kim, Yeonggwon Jo, In Kyong Shim, Song Cheol Kim, Jinah Jang   +7 more
wiley   +1 more source

Effect of Flood Hydrograph Duration, Magnitude, and Shape on Bed Load Transport Dynamics

Geophysical Research Letters, 2018
Bed load sediment transport is an inherently challenging process to measure within a river, which is further complicated by the typically transient nature of the hydrograph.
C. B. Phillips, K. M. Hill, C. Paola, M. B. Singer, D. J. Jerolmack   +4 more
doaj   +1 more source

Self‐Assembled Nanoclay Gel With Spheroid MSC‐Derived Exosome Mimetics to Integrate Demineralized Bone Matrix and Noggin‐Targeting miRNA for Synergistic Osteogenesis

Advanced Functional Materials, EarlyView.
We report a versatile nanoclay gel carrier platform that enhances the osteogenic efficacy of demineralized bone matrix (DBM) by integrating nanoclay‐based self‐assembly with cell‐derived exosome mimetics loaded with noggin‐targeting miR‐200c. This design amplifies BMP signaling, thereby promoting DBM‐mediated osteogenesis and offering a promising ...
Changlu Xu, Zhi Li, Minjee Kang, Ruoyu Sheng, Bing Han, Yiqing Chen, Tara Aghaloo, Min Lee   +7 more
wiley   +1 more source

Erosion of a granular bed driven by laminar fluid flow

, 2008
Motivated by examples of erosive incision of channels in sand, we investigate the motion of individual grains in a granular bed driven by a laminar fluid to give us new insights into the relationship between hydrodynamic stress and surface granular flow.
ALEXANDER E. LOBKOVSKY, ARSHAD KUDROLLI, ASHISH V. ORPE, Bailard, DANIEL H. ROTHMAN, Einstein, Graf, Komar, Meyer-Peter, Neill, Quartier, RYAN MOLLOY, Siavoshi, van Rijn, Yalin   +14 more
core   +1 more source

Texoskeletons: Developing the Fundamental Technologies for Creating Intelligent Soft Robotic Clothing With Integrated 1D Sensors and Actuators

Advanced Functional Materials, EarlyView.
ABSTRACT Traditional wearable exoskeletons rely on rigid structures, which limit comfort, flexibility, and everyday usability. This work introduces the fundamental technologies to create the first soft, lightweight, intelligent textile‐based exoskeletons (Texoskeletons) built using 1D sensors and actuators.
Amy Lukomiak, Rameesh Bulathsinghala, Jack Varga, Shuxin Meng, Kalana Marasinghe, Imaad Refai, Biyon Fernando, Amitkumar Patel, Chamika M. Halloluwa‐Arachchige, Carlos Oliveira, Arash M. Shahidi, Zahra Rahemtulla, Alexander Turner, Ziyun Ding, Bernard X. W. Liew, Andy Kerr, Ezio Preatoni, Theo Hughes‐Riley, Ishara Dharmasena, Pasindu Lugoda   +19 more
wiley   +1 more source

Dynamics and deposits generated by the Kos Plateau Tuff eruption: Controls of basal particle loss on pyroclastic flow transport

Geochemistry, Geophysics, Geosystems, 2007
The explosive eruption of voluminous silicic magmas often produces widespread and massive deposits formed from pyroclastic density currents. While these punctuated events dramatically alter the landscape and have potential climate‐altering impact, our ...
Josef Dufek, George W. Bergantz
doaj   +1 more source

UNSTEADY BED-LOAD TRANSPORT IN GRAVEL-BED OPEN CHANNEL

Doboku Gakkai Ronbunshu, 1990
Bed-load transport at unsteady flow is studied. In gravel-bed streams, the direct effect of flow unsteadiness on bed-load motion promotes the transport discharge and brings positive or negative phase shift. Meanwhile, in sand beds with dunes, the relaxation effect suppresses the sediment discharge and causes the phase lag.
openaire   +2 more sources