Results 71 to 80 of about 27,981 (251)

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

Advanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane, Gyan Edbert Zesiro, Hao Zhou, Gursel Alici, Mu Chiao   +4 more
wiley   +1 more source

Declining Freshwater Availability in the Colorado River Basin Threatens Sustainability of Its Critical Groundwater Supplies

Geophysical Research Letters
The Colorado River Basin (CRB) is experiencing persistent aridification due to a complex interplay of natural and anthropogenic activities, resulting in significant groundwater depletion across the region. We used over two decades of NASA GRACE and GRACE
Karem Abdelmohsen, James S. Famiglietti, Yufei Zoe Ao, Behshad Mohajer, Hrishikesh A. Chandanpurkar   +4 more
doaj   +1 more source

Hybrid Additive Manufacturing of Highly Stretchable Bottlebrush Polymer Nanocomposites by Decoupled Extrusion and Photopatterning

Advanced Materials Technologies, EarlyView.
A Hybrid Direct Ink Writing–Digital Light Processing (HDD) strategy decouples material extrusion from shape definition, enabling high‐fidelity additive manufacturing of highly viscous, yield‐stress polymer nanocomposites. Excess ink acts as a removable, self‐supporting scaffold, allowing fabrication of unsupported and embedded complex architectures ...
Shahryar Ramezani Bajgiran, Emmanuel Oduro, Daniel A. Rau, Li‐Heng Cai   +3 more
wiley   +1 more source

The Review of GRACE Data Applications in Terrestrial Hydrology Monitoring

Advances in Meteorology, 2014
The Gravity Recovery and Climate Experiment (GRACE) satellite provides a new method for terrestrial hydrology research, which can be used for improving the monitoring result of the spatial and temporal changes of water cycle at large scale quickly.
Dong Jiang, Jianhua Wang, Yaohuan Huang, Kang Zhou, Xiangyi Ding, Jingying Fu   +5 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Significant differences in terrestrial water storage estimated by four common methods

Journal of Hydrology: Regional Studies
Study region: The Yellow River headwaters, located in the northeastern part of the Tibetan Plateau. Study focus: Terrestrial water storage can be estimated by multiple approaches. However, the limited quantification of these methods regarding terrestrial
Anqi Niu, Long Sun, Ranhao Sun, Liding Chen   +3 more
doaj   +1 more source

Anthropogenic and climate‐driven water depletion in Asia

Geophysical Research Letters, 2016
Anthropogenic depletion of terrestrial water storage (TWS) can be alleviated in wet years and intensified in dry years, and this wet/dry pattern spanning seasons to years is termed climate variability.
Shuang Yi, Wenke Sun, Wei Feng, Jianli Chen   +3 more
doaj   +1 more source

Amplitude Modulation of Seasonal Variability in Terrestrial Water Storage

Geophysical Research Letters, 2019
AbstractVariability in climate and weather in many land regions is dominated by a seasonal cycle that is typically defined by as a stable, repeated pattern. Defining the annual cycle as strictly stationary, however, precludes the possibility of changes in its amplitude from one year to the next. In this study, we target and extract the modulated annual
B. D. Hamlington, J. T. Reager, H. Chandanpurkar, K.‐Y. Kim   +3 more
openaire   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source